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Unisex Lightweight 100% Cotton T-Shirts

Soft, breathable, and built for everyday wear. Shop unisex lightweight 100% cotton t-shirts that plant trees with every purchase.

Unisex Lightweight 100% Cotton T-Shirts

Soft, breathable, and built for everyday wear. Shop unisex lightweight 100% cotton t-shirts that plant trees with every purchase.

Product photo of the BeCause Tees Custom Create Your Own Boxed Design - Lightweight 100% Cotton Unisex Crewneck.
Product photo of the BeCause Tees Custom Create Your Own Boxed Design - Lightweight 100% Cotton Unisex Crewneck.
Custom Create Your Own Boxed Design - Lightweight 100% Cotton Unisex Crewneck

Custom Create Your Own Boxed Design

from $39.99

Custom Create Your Own Boxed Design from $39.99
Vintage denim lightweight cotton t-shirt laid flat, printed with the words POP POP in thin black letters stacked inside a square outline.
Vintage denim lightweight cotton t-shirt laid flat, printed with the words POP POP in thin black letters stacked inside a square outline.
Pop Pop Boxed - Lightweight 100% Cotton Unisex Crewneck

Pop Pop Boxed

from $35.99

Pop Pop Boxed from $35.99
Vintage denim lightweight cotton t-shirt laid flat, printed with the word POPS in thin black letters inside a rectangle outline.
Vintage denim lightweight cotton t-shirt laid flat, printed with the word POPS in thin black letters inside a rectangle outline.
Pops Boxed 1 line - Lightweight 100% Cotton Unisex Crewneck

Pops Boxed 1 line

from $35.99

Pops Boxed 1 line from $35.99
Vintage denim lightweight cotton t-shirt laid flat, printed with the word PAPA in thin black letters stacked inside a square outline.
Vintage denim lightweight cotton t-shirt laid flat, printed with the word PAPA in thin black letters stacked inside a square outline.
Papa Boxed - Lightweight 100% Cotton Unisex Crewneck

Papa Boxed

from $35.99

Papa Boxed from $35.99
Sage green lightweight cotton t-shirt laid flat, printed with the word DADA in thin black letters stacked inside a square outline.
Sage green lightweight cotton t-shirt laid flat, printed with the word DADA in thin black letters stacked inside a square outline.
Dada Boxed - Lightweight 100% Cotton Unisex Crewneck

Dada Boxed

from $35.99

Dada Boxed from $35.99
Steel blue lightweight cotton t-shirt laid flat, printed with a detailed black ink sketch of a common raven perched on a rock.
Steel blue lightweight cotton t-shirt laid flat, printed with a detailed black ink sketch of a common raven perched on a rock.
Corvus corax - Common Raven - Lightweight 100% Cotton Unisex Crewneck

Corvus corax

from $35.99

Corvus corax from $35.99
Honeycomb yellow lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a honey bee with its wings spread, seen from above.
Honeycomb yellow lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a honey bee with its wings spread, seen from above.
Apis Mellifera - Honey Bee - Lightweight 100% Cotton Unisex Crewneck

Apis Mellifera

from $35.99

Apis Mellifera from $35.99
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a circle of pine trees and an ocean wave ringed by the words Save the Bees, Clean Our Seas, Plant More Trees.
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a circle of pine trees and an ocean wave ringed by the words Save the Bees, Clean Our Seas, Plant More Trees.
Save the Bees, Clean our Seas, Plant more Trees - Lightweight 100% Cotton Unisex Crewneck

Save the Bees, Clean our Seas, Plant more Trees

from $35.99

Save the Bees, Clean our Seas, Plant more Trees from $35.99
Sage green lightweight cotton t-shirt laid flat, printed with a black ink illustration of a cluster of evergreen trees of varying heights.
Sage green lightweight cotton t-shirt laid flat, printed with a black ink illustration of a cluster of evergreen trees of varying heights.
Evergreen Trees - Lightweight 100% Cotton Unisex Crewneck

Evergreen Trees

from $35.99

Evergreen Trees from $35.99
Ocean blue lightweight cotton t-shirt laid flat, printed with a black line art circle connecting a mountain range, pine trees, a bee and a whale swimming in ocean waves.
Ocean blue lightweight cotton t-shirt laid flat, printed with a black line art circle connecting a mountain range, pine trees, a bee and a whale swimming in ocean waves.
It's All Connected - Lightweight 100% Cotton Unisex Crewneck

It's All Connected

from $35.99

It's All Connected from $35.99
Military green lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of an opossum standing and facing forward, mouth open wide in a hiss, with shaggy fur and its tail curled behind.
Military green lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of an opossum standing and facing forward, mouth open wide in a hiss, with shaggy fur and its tail curled behind.
Hissing Opossum - Didelphidae - Lightweight 100% Cotton Unisex Crewneck

Hissing Opossum

from $35.99

Hissing Opossum from $35.99
Vintage denim lightweight cotton t-shirt laid flat, printed with the words RAD DAD in thin black letters stacked inside a square outline.
Vintage denim lightweight cotton t-shirt laid flat, printed with the words RAD DAD in thin black letters stacked inside a square outline.
Rad Dad Boxed - Lightweight 100% Cotton Unisex Crewneck

Rad Dad Boxed

from $35.99

Rad Dad Boxed from $35.99
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink sketch of a ruby-throated hummingbird hovering with its wings raised.
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink sketch of a ruby-throated hummingbird hovering with its wings raised.
Archilochus Colubris - Ruby-throated Hummingbird - Lightweight 100% Cotton Unisex Crewneck

Archilochus Colubris

from $35.99

Archilochus Colubris from $35.99
Steel blue lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a scruffy raccoon walking.
Steel blue lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a scruffy raccoon walking.
Short-Spine Seattle Raccoon - Lightweight 100% Cotton Unisex Crewneck

Short-Spine Seattle Raccoon

from $35.99

Short-Spine Seattle Raccoon from $35.99
Spring green lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink illustration of a green darner dragonfly with its wings spread, seen from above.
Spring green lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink illustration of a green darner dragonfly with its wings spread, seen from above.
Anax Junius - Green Darner Dragonfly - Lightweight 100% Cotton Unisex Crewneck

Anax Junius

from $35.99

Anax Junius from $35.99
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink sketch of a Carolina wren perched on a branch with its tail raised.
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink sketch of a Carolina wren perched on a branch with its tail raised.
Carolina Wren - Thryothorus ludovicianus - Lightweight 100% Cotton Unisex Crewneck

Carolina Wren

from $35.99

Carolina Wren from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a Virginia opossum standing with its long tail curled.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a Virginia opossum standing with its long tail curled.
Virginia Opossum - Didelphis virginiana - Lightweight 100% Cotton Unisex Crewneck

Virginia Opossum

from $35.99

Virginia Opossum from $35.99
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink illustration of two monarch butterflies on flowering milkweed.
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink illustration of two monarch butterflies on flowering milkweed.
Narrowleaf Milkweed with Monarchs - Lightweight 100% Cotton Unisex Crewneck

Narrowleaf Milkweed with Monarchs

from $35.99

Narrowleaf Milkweed with Monarchs from $35.99
Military green lightweight cotton t-shirt laid flat, printed with a circle of pine trees under a starry sky, with the words Find Me Under the Stars.
Military green lightweight cotton t-shirt laid flat, printed with a circle of pine trees under a starry sky, with the words Find Me Under the Stars.
Find Me Under the Stars - Lightweight 100% Cotton Unisex Crewneck

Find Me Under the Stars

from $35.99

Find Me Under the Stars from $35.99
Autumn lightweight cotton t-shirt laid flat, printed with a soft full-color illustration of a bee flying over pink and purple wildflowers.
Autumn lightweight cotton t-shirt laid flat, printed with a soft full-color illustration of a bee flying over pink and purple wildflowers.
Bee with Wildflowers - Lightweight 100% Cotton Unisex Crewneck

Bee with Wildflowers

from $35.99

Bee with Wildflowers from $35.99
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a full-color chart of North American backyard birds, each labeled with its species.
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a full-color chart of North American backyard birds, each labeled with its species.
Common Backyard Birds of North America - Lightweight 100% Cotton Unisex Crewneck

Common Backyard Birds of North America

from $35.99

Common Backyard Birds of North America from $35.99
Sage green lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a western grey squirrel sitting upright with a bushy tail.
Sage green lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a western grey squirrel sitting upright with a bushy tail.
Western Grey Squirrel - Sciurus griseus - Lightweight 100% Cotton Unisex Crewneck

Western Grey Squirrel

from $35.99

Western Grey Squirrel from $35.99
Vintage denim lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a brown pelican perched on a wooden piling.
Vintage denim lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a brown pelican perched on a wooden piling.
Pelecanus occidentalis - Brown Pelican - Lightweight 100% Cotton Unisex Crewneck

Pelecanus occidentalis

from $35.99

Pelecanus occidentalis from $35.99
Honeycomb yellow lightweight cotton t-shirt laid flat, printed with a detailed black ink line drawing of a Lemon Queen sunflower in bloom.
Honeycomb yellow lightweight cotton t-shirt laid flat, printed with a detailed black ink line drawing of a Lemon Queen sunflower in bloom.
Lemon Queen Sunflower - Helianthus Annuus - Lightweight 100% Cotton Unisex Crewneck

Lemon Queen Sunflower

from $35.99

Lemon Queen Sunflower from $35.99
Storm grey lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a rusty patched bumble bee with its wings spread, seen from above.
Storm grey lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a rusty patched bumble bee with its wings spread, seen from above.
Bombus Affinis - Rusty-Patched Bumble Bee - Lightweight 100% Cotton Unisex Crewneck

Bombus Affinis

from $35.99

Bombus Affinis from $35.99
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink portrait of a raccoon with its front paws resting in front of it.
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink portrait of a raccoon with its front paws resting in front of it.
Raccoon - Procyon lotor - Lightweight 100% Cotton Unisex Crewneck

Raccoon

from $35.99

Raccoon from $35.99
Autumn lightweight cotton t-shirt laid flat, printed with a full-color bouquet of orange California poppies arranged in a heart shape, with small bees.
Autumn lightweight cotton t-shirt laid flat, printed with a full-color bouquet of orange California poppies arranged in a heart shape, with small bees.
Color California Poppy Heart - Lightweight 100% Cotton Unisex Crewneck

Color California Poppy Heart

from $35.99

Color California Poppy Heart from $35.99
Steel blue lightweight cotton t-shirt laid flat, printed with the word DAD in thin black letters inside a square outline.
Steel blue lightweight cotton t-shirt laid flat, printed with the word DAD in thin black letters inside a square outline.
Dad Boxed - Lightweight 100% Cotton Unisex Crewneck

Dad Boxed

from $35.99

Dad Boxed from $35.99
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink illustration of a great blue heron standing on rocks.
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink illustration of a great blue heron standing on rocks.
Ardea herodias - Great Blue Heron - Lightweight 100% Cotton Unisex Crewneck

Ardea herodias

from $35.99

Ardea herodias from $35.99
Ocean blue lightweight cotton t-shirt laid flat, printed with a black ink illustration of a smiling axolotl with feathery gills.
Ocean blue lightweight cotton t-shirt laid flat, printed with a black ink illustration of a smiling axolotl with feathery gills.
Axolotl - Ambystoma mexicanum - Lightweight 100% Cotton Unisex Crewneck

Axolotl

from $35.99

Axolotl from $35.99
Autumn lightweight cotton t-shirt laid flat, printed with the word FUNCLE in thin black letters stacked inside a square outline.
Autumn lightweight cotton t-shirt laid flat, printed with the word FUNCLE in thin black letters stacked inside a square outline.
Funcle Boxed - Lightweight 100% Cotton Unisex Crewneck

Funcle Boxed

from $35.99

Funcle Boxed from $35.99
Vintage denim lightweight cotton t-shirt laid flat, printed with a detailed black ink sketch of a black-capped chickadee perched on a branch.
Vintage denim lightweight cotton t-shirt laid flat, printed with a detailed black ink sketch of a black-capped chickadee perched on a branch.
Black-capped Chickadee - Poecile atricapillus - Lightweight 100% Cotton Unisex Crewneck

Black-capped Chickadee

from $35.99

Black-capped Chickadee from $35.99
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink illustration of an American pika holding flowers and grass in its mouth.
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a detailed black ink illustration of an American pika holding flowers and grass in its mouth.
Ochotona princeps - American Pika - Lightweight 100% Cotton Unisex Crewneck

Ochotona princeps

from $35.99

Ochotona princeps from $35.99
Ocean blue lightweight cotton t-shirt laid flat, printed with black ink monarch butterflies on milkweed flowers, framed by the words Save the Monarchs, Plant Native Milkweed.
Ocean blue lightweight cotton t-shirt laid flat, printed with black ink monarch butterflies on milkweed flowers, framed by the words Save the Monarchs, Plant Native Milkweed.
Save the Monarchs - Plant Native Milkweed - Lightweight 100% Cotton Unisex Crewneck

Save the Monarchs

from $35.99

Save the Monarchs from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a forest of tall hemlock trees.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a forest of tall hemlock trees.
Hemlock Forest - Lightweight 100% Cotton Unisex Crewneck

Hemlock Forest

from $35.99

Hemlock Forest from $35.99
Steel blue lightweight cotton t-shirt laid flat, printed with a black ink illustration of a northern river otter peeking out of the water.
Steel blue lightweight cotton t-shirt laid flat, printed with a black ink illustration of a northern river otter peeking out of the water.
Northern Sea Otter - Enhydra lutris kenyoni - Lightweight 100% Cotton Unisex Crewneck

Northern Sea Otter

from $35.99

Northern Sea Otter from $35.99
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink illustration of a hiker in boots and a dog sitting side by side on a forest trail, seen from behind.
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink illustration of a hiker in boots and a dog sitting side by side on a forest trail, seen from behind.
Trail Companions - Hiking with Dogs - Lightweight 100% Cotton Unisex Crewneck

Trail Companions

from $35.99

Trail Companions from $35.99
Ocean blue lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a common octopus with curling tentacles.
Ocean blue lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a common octopus with curling tentacles.
Octopus Vulgaris - Common Octopus - Lightweight 100% Cotton Unisex Crewneck

Octopus Vulgaris

from $35.99

Octopus Vulgaris from $35.99
Ocean blue lightweight cotton t-shirt laid flat, printed with a black ink line drawing of an African elephant facing forward with large ears and tusks.
Ocean blue lightweight cotton t-shirt laid flat, printed with a black ink line drawing of an African elephant facing forward with large ears and tusks.
Loxodonta africana - African Elephant - Lightweight 100% Cotton Unisex Crewneck

Loxodonta africana

from $35.99

Loxodonta africana from $35.99
Honeycomb yellow lightweight cotton t-shirt laid flat, printed with a black ink heart made of honeycomb cells with small bees crawling across it.
Honeycomb yellow lightweight cotton t-shirt laid flat, printed with a black ink heart made of honeycomb cells with small bees crawling across it.
Honeycomb Heart with Bees - Lightweight 100% Cotton Unisex Crewneck

Honeycomb Heart with Bees

from $35.99

Honeycomb Heart with Bees from $35.99
Spring green lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink line drawing of California poppies arranged in a heart shape, with small bees.
Spring green lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink line drawing of California poppies arranged in a heart shape, with small bees.
California Poppy Heart - Lightweight 100% Cotton Unisex Crewneck

California Poppy Heart

from $35.99

California Poppy Heart from $35.99
Autumn lightweight cotton t-shirt laid flat, printed with bold black words reading Save the Bees beside a detailed honey bee illustration.
Autumn lightweight cotton t-shirt laid flat, printed with bold black words reading Save the Bees beside a detailed honey bee illustration.
Save the Bees - Lightweight 100% Cotton Unisex Crewneck

Save the Bees

from $35.99

Save the Bees from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a bee flying toward a coneflower, with the handwritten words no bees no us.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a bee flying toward a coneflower, with the handwritten words no bees no us.
No Bees No Us - Lightweight 100% Cotton Unisex Crewneck

No Bees No Us

from $35.99

No Bees No Us from $35.99
Vintage denim lightweight cotton t-shirt laid flat, printed with a chart of black ink insect and arthropod illustrations, including dragonflies, beetles, spiders and bees.
Vintage denim lightweight cotton t-shirt laid flat, printed with a chart of black ink insect and arthropod illustrations, including dragonflies, beetles, spiders and bees.
Chart of Arthropods/Insects - Lightweight 100% Cotton Unisex Crewneck

Chart of Arthropods/Insects

from $35.99

Chart of Arthropods/Insects from $35.99
Military green lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a large Jeffrey pine cone.
Military green lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a large Jeffrey pine cone.
Pinus Jeffreyi - Jeffrey Pine Cone - Lightweight 100% Cotton Unisex Crewneck

Pinus Jeffreyi

from $35.99

Pinus Jeffreyi from $35.99
Vintage denim lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a great horned owl standing upright with its ear tufts raised.
Vintage denim lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a great horned owl standing upright with its ear tufts raised.
Bubo virginianus - Great Horned Owl - Lightweight 100% Cotton Unisex Crewneck

Bubo virginianus

from $35.99

Bubo virginianus from $35.99
Spring green lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink illustration of a lady fern frond.
Spring green lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink illustration of a lady fern frond.
Athyrium filix femina - Lady Fern - Lightweight 100% Cotton Unisex Crewneck

Athyrium filix femina

from $35.99

Athyrium filix femina from $35.99
Spring green lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink illustration of a mother opossum on a branch carrying her babies on her back.
Spring green lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a black ink illustration of a mother opossum on a branch carrying her babies on her back.
Mama Opossum with Babies - Lightweight 100% Cotton Unisex Crewneck

Mama Opossum with Babies

from $35.99

Mama Opossum with Babies from $35.99

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