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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.

Autumn lightweight cotton t-shirt laid flat, printed with a full-color illustration of a bunch of yellow and orange sunflowers.
Autumn lightweight cotton t-shirt laid flat, printed with a full-color illustration of a bunch of yellow and orange sunflowers.
Firecracker Sunflowers - Helianthus annuus - Lightweight 100% Cotton Unisex Crewneck

Firecracker Sunflowers

from $35.99

Firecracker Sunflowers from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a peregrine falcon in flight.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a peregrine falcon in flight.
Flying Peregrine - Falco peregrinus - Lightweight 100% Cotton Unisex Crewneck

Flying Peregrine

from $35.99

Flying Peregrine from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink line drawing of a magnolia blossom on a stem.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink line drawing of a magnolia blossom on a stem.
Southern Magnolia Stem - Lightweight 100% Cotton Unisex Crewneck

Southern Magnolia Stem

from $35.99

Southern Magnolia Stem from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with black hand-lettered words reading Save the Bees, Clean Our Seas, Plant More Trees.
Blue bell lightweight cotton t-shirt laid flat, printed with black hand-lettered words reading Save the Bees, Clean Our Seas, Plant More Trees.
Bees Seas Trees - Typography - Lightweight 100% Cotton Unisex Crewneck

Bees Seas Trees

from $35.99

Bees Seas Trees from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a heart shape filled with small black ink insects, including dragonflies, beetles and bees.
Blue bell lightweight cotton t-shirt laid flat, printed with a heart shape filled with small black ink insects, including dragonflies, beetles and bees.
Heart Full of Insects - Lightweight 100% Cotton Unisex Crewneck

Heart Full of Insects

from $35.99

Heart Full of Insects from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of an osprey in flight with its wings spread.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of an osprey in flight with its wings spread.
Osprey - Pandion haliaetus - Lightweight 100% Cotton Unisex Crewneck

Osprey

from $35.99

Osprey from $35.99
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with the word MAMA in thin black letters stacked inside a square outline.
Dusty blue lightweight cotton t-shirt laid flat with the sleeves rolled, printed with the word MAMA in thin black letters stacked inside a square outline.
Mama Boxed - Lightweight 100% Cotton Unisex Crewneck

Mama Boxed

from $35.00

Mama Boxed from $35.00
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a Joshua tree.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a Joshua tree.
Yucca brevifolia - Joshua Tree - Lightweight 100% Cotton Unisex Crewneck

Yucca brevifolia

from $35.99

Yucca brevifolia from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a fox squirrel sitting with a bushy tail.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a fox squirrel sitting with a bushy tail.
Eastern Fox Squirrel - Sciurus niger - Lightweight 100% Cotton Unisex Crewneck

Eastern Fox Squirrel

from $35.99

Eastern Fox Squirrel from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of an orca leaping, with ink splatters.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of an orca leaping, with ink splatters.
Orca Whale - Lightweight 100% Cotton Unisex Crewneck

Orca Whale

from $35.99

Orca Whale from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink line drawing of a dandelion seed head with seeds blowing away.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink line drawing of a dandelion seed head with seeds blowing away.
Common Dandelion - Taraxacum officinale - Lightweight 100% Cotton Unisex Crewneck

Common Dandelion

from $35.99

Common Dandelion from $35.99
Autumn lightweight cotton t-shirt laid flat, printed with a black ink illustration of a Tyrannosaurus rex roaring.
Autumn lightweight cotton t-shirt laid flat, printed with a black ink illustration of a Tyrannosaurus rex roaring.
Tyrannosaurus Rex - Lightweight 100% Cotton Unisex Crewneck

Tyrannosaurus Rex

from $35.99

Tyrannosaurus Rex from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a leatherback sea turtle hatchling emerging from its egg.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a leatherback sea turtle hatchling emerging from its egg.
Leatherback Turtle Hatching - Lightweight 100% Cotton Unisex Crewneck

Leatherback Turtle Hatching

from $35.99

Leatherback Turtle Hatching from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a heart shape filled with black ink flowers and bees.
Blue bell lightweight cotton t-shirt laid flat, printed with a heart shape filled with black ink flowers and bees.
Heart Full of Blooms and Bees - Lightweight 100% Cotton Unisex Crewneck

Heart Full of Blooms and Bees

from $35.99

Heart Full of Blooms and Bees from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink portrait of a shaggy highland cow with long curved horns.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink portrait of a shaggy highland cow with long curved horns.
Scottish Highland Cow - Bos taurus taurus - Lightweight 100% Cotton Unisex Crewneck

Scottish Highland Cow

from $35.99

Scottish Highland Cow from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink sketch of a tufted titmouse perched on a branch.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink sketch of a tufted titmouse perched on a branch.
Tufted Titmouse - Baeolophus bicolor - Lightweight 100% Cotton Unisex Crewneck

Tufted Titmouse

from $35.99

Tufted Titmouse from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a periodical cicada with its wings folded, seen from above.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a periodical cicada with its wings folded, seen from above.
Pharoh Cicada - Magicicada septendecim - Lightweight 100% Cotton Unisex Crewneck

Pharoh Cicada

from $35.99

Pharoh Cicada from $35.99
Steel blue lightweight cotton t-shirt laid flat, printed with a black ink bear's face wearing sunglasses that read Papa Bear.
Steel blue lightweight cotton t-shirt laid flat, printed with a black ink bear's face wearing sunglasses that read Papa Bear.
Papa Bear - Lightweight 100% Cotton Unisex Crewneck

Papa Bear

from $35.99

Papa Bear from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink portrait of a bald eagle facing forward.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink portrait of a bald eagle facing forward.
Haliaeetus Leucocephalus - American Bald Eagle - Lightweight 100% Cotton Unisex Crewneck

Haliaeetus Leucocephalus

from $35.99

Haliaeetus Leucocephalus from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of Bigfoot walking through a pine forest.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of Bigfoot walking through a pine forest.
Bigfoot in the Woods - Lightweight 100% Cotton Unisex Crewneck

Bigfoot in the Woods

from $35.99

Bigfoot in the Woods from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with black line art of mountains, pine trees, a crescent moon and stars above a lake inside a diamond outline.
Blue bell lightweight cotton t-shirt laid flat, printed with black line art of mountains, pine trees, a crescent moon and stars above a lake inside a diamond outline.
Camp Diamond - Lightweight 100% Cotton Unisex Crewneck

Camp Diamond

from $35.99

Camp Diamond from $35.99
Autumn lightweight cotton t-shirt laid flat, printed with a heart shape made of small bees and looping flight trails.
Autumn lightweight cotton t-shirt laid flat, printed with a heart shape made of small bees and looping flight trails.
Heart Full of Honeybees - Lightweight 100% Cotton Unisex Crewneck

Heart Full of Honeybees

from $35.99

Heart Full of Honeybees from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a smiling quokka sitting upright.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a smiling quokka sitting upright.
Quokkas - Setonix brachyurus - Lightweight 100% Cotton Unisex Crewneck

Quokkas

from $35.99

Quokkas from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink sketch of a snowy plover running along the wet shoreline.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink sketch of a snowy plover running along the wet shoreline.
Western Snowy Plover - Charadrius nivosus nivosus - Lightweight 100% Cotton Unisex Crewneck

Western Snowy Plover

from $35.99

Western Snowy Plover from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of an emperor penguin standing.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of an emperor penguin standing.
Emperor Penguin - Aptenodytes forsteri - Lightweight 100% Cotton Unisex Crewneck

Emperor Penguin

from $35.99

Emperor Penguin from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a row of snow-dusted evergreen trees.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a row of snow-dusted evergreen trees.
Winter Evergreens - Lightweight 100% Cotton Unisex Crewneck

Winter Evergreens

from $35.99

Winter Evergreens from $35.99
Autumn lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a tardigrade, or water bear.
Autumn lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a tardigrade, or water bear.
Tardigrade - Tardigrada - Lightweight 100% Cotton Unisex Crewneck

Tardigrade

from $35.99

Tardigrade from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a bobcat standing in tall grass, facing forward.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a bobcat standing in tall grass, facing forward.
Bobcat - Lynx rufus - Lightweight 100% Cotton Unisex Crewneck

Bobcat

from $35.99

Bobcat from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a spotted leopard gecko climbing.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a spotted leopard gecko climbing.
Eublepharis macularius - Leopard Gecko - Lightweight 100% Cotton Unisex Crewneck

Eublepharis macularius

from $35.99

Eublepharis macularius from $35.99
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a full-color illustration of an American robin with an orange breast perched on a branch.
Mauve pink lightweight cotton t-shirt laid flat with the sleeves rolled, printed with a full-color illustration of an American robin with an orange breast perched on a branch.
Vibrant American Robin - Turdus migratorius - Lightweight 100% Cotton Unisex Crewneck

Vibrant American Robin

from $35.99

Vibrant American Robin from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of an Andean flamingo standing on one leg.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of an Andean flamingo standing on one leg.
Andean Flamingo - Phoenicoparrus andinus - Lightweight 100% Cotton Unisex Crewneck

Andean Flamingo

from $35.99

Andean Flamingo from $35.99
Leaf green lightweight cotton t-shirt laid flat, printed with a black ink illustration of a spotted whale shark swimming.
Leaf green lightweight cotton t-shirt laid flat, printed with a black ink illustration of a spotted whale shark swimming.
Whale Shark - Lightweight 100% Cotton Unisex Crewneck

Whale Shark

from $35.99

Whale Shark from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with black ink bees scattered among wildflowers.
Blue bell lightweight cotton t-shirt laid flat, printed with black ink bees scattered among wildflowers.
Bees & Blooms - Honeybees with Wildflowers - Lightweight 100% Cotton Unisex Crewneck

Bees & Blooms

from $35.99

Bees & Blooms from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a grove of aspen trees.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a grove of aspen trees.
Quaking Aspens - Populus tremuloides - Lightweight 100% Cotton Unisex Crewneck

Quaking Aspens

from $35.99

Quaking Aspens from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a black-tailed jackrabbit sitting with long upright ears.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a black-tailed jackrabbit sitting with long upright ears.
Black-tailed Jackrabbit - Lepus californicus - Lightweight 100% Cotton Unisex Crewneck

Black-tailed Jackrabbit

from $35.99

Black-tailed Jackrabbit from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with bold black text reading WILD stacked three times, with a tall pine tree forming the letter I.
Blue bell lightweight cotton t-shirt laid flat, printed with bold black text reading WILD stacked three times, with a tall pine tree forming the letter I.
Wild - Lightweight 100% Cotton Unisex Crewneck

Wild

from $35.99

Wild from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a raven in flight with its wings spread.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a raven in flight with its wings spread.
Flying Raven - Corvus corax - Lightweight 100% Cotton Unisex Crewneck

Flying Raven

from $35.99

Flying Raven from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a least chipmunk sitting and holding food in its paws.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a least chipmunk sitting and holding food in its paws.
Chipmunk - Neotamias minimus - Lightweight 100% Cotton Unisex Crewneck

Chipmunk

from $35.99

Chipmunk from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a western hemlock pine cone.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a western hemlock pine cone.
Tsuga heterophylla - Western Hemlock Pine Cone - Lightweight 100% Cotton Unisex Crewneck

Tsuga heterophylla

from $35.99

Tsuga heterophylla from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink sea otter floating on its back, with the words Monterey California, 1770, Where Land Meets Sea.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink sea otter floating on its back, with the words Monterey California, 1770, Where Land Meets Sea.
Monterey Sea Otter - Lightweight 100% Cotton Unisex Crewneck

Monterey Sea Otter

from $35.99

Monterey Sea Otter from $35.99
Autumn lightweight cotton t-shirt laid flat, printed with a full-color illustration of a blue jay perched on a branch.
Autumn lightweight cotton t-shirt laid flat, printed with a full-color illustration of a blue jay perched on a branch.
Vibrant Blue Jay - Cyanocitta cristata - Lightweight 100% Cotton Unisex Crewneck

Vibrant Blue Jay

from $35.99

Vibrant Blue Jay from $35.99
Dusty blue lightweight cotton t-shirt laid flat, printed with a black ink illustration of a weeping willow tree.
Dusty blue lightweight cotton t-shirt laid flat, printed with a black ink illustration of a weeping willow tree.
Weeping Willow - Salix babylonica - Lightweight 100% Cotton Unisex Crewneck

Weeping Willow

from $35.99

Weeping Willow from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of an American badger facing forward.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of an American badger facing forward.
American Badger - Taxidea taxus - Lightweight 100% Cotton Unisex Crewneck

American Badger

from $35.99

American Badger from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a chart of black ink California shorebirds, including herons, egrets, avocets and sandpipers.
Blue bell lightweight cotton t-shirt laid flat, printed with a chart of black ink California shorebirds, including herons, egrets, avocets and sandpipers.
California Shorebirds - Lightweight 100% Cotton Unisex Crewneck

California Shorebirds

from $35.99

California Shorebirds from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a roadrunner running.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a roadrunner running.
Greater Roadrunner - Geococcyx californianus - Lightweight 100% Cotton Unisex Crewneck

Greater Roadrunner

from $35.99

Greater Roadrunner from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a swallowtail butterfly resting on lavender.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a swallowtail butterfly resting on lavender.
Eastern Tiger Swallowtail with Lavender - Lightweight 100% Cotton Unisex Crewneck

Eastern Tiger Swallowtail with Lavender

from $35.99

Eastern Tiger Swallowtail with Lavender from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a groundhog peeking out of its burrow among grass.
Blue bell lightweight cotton t-shirt laid flat, printed with a black ink illustration of a groundhog peeking out of its burrow among grass.
Groundhog - Marmota Monax - Lightweight 100% Cotton Unisex Crewneck

Groundhog

from $35.99

Groundhog from $35.99
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a small emperor moth with eyespots on its wings.
Blue bell lightweight cotton t-shirt laid flat, printed with a detailed black ink illustration of a small emperor moth with eyespots on its wings.
Saturnia pavonia - Small Emperor Moth - Lightweight 100% Cotton Unisex Crewneck

Saturnia pavonia

from $35.99

Saturnia pavonia from $35.99

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