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Shop our 100% cotton relaxed fit long sleeve tees featuring designs that celebrate the planet. Made with USA-grown cotton, they’re soft, preshrunk, and perfect for everyday comfort. Wear your cause with Because Tees!
Shoebill Stork - Balaeniceps rex - Men's Heavyweight 100% Cotton Long Sleeve
4.87 / 5.0
69 Reviews
Black-footed Ferret - Mustela nigripes - Men's Heavyweight 100% Cotton Long Sleeve
4.83 / 5.0
382 Reviews
Lakeside Hammock - Men's Heavyweight 100% Cotton Long Sleeve
Pacific Tree Frogs - Pseudacris regilla - Men's Heavyweight 100% Cotton Long Sleeve
White-breasted Nuthatch - Sitta carolinensis - Men's Heavyweight 100% Cotton Long Sleeve
Protect The Manatees - Defend Their Waters - Men's Heavyweight 100% Cotton Long Sleeve
Denali Mountain - Denali National Park - Men's Heavyweight 100% Cotton Long Sleeve
Denali National Park - Men's Heavyweight 100% Cotton Long Sleeve
Wildlife of Acadia National Park - Men's Heavyweight 100% Cotton Long Sleeve
Bozeman Montana Bison - Men's Heavyweight 100% Cotton Long Sleeve
Western Diamondback Rattlesnake - Crotalus atrox - Men's Heavyweight 100% Cotton Long Sleeve
Wildlife of Yellowstone National Park - Men's Heavyweight 100% Cotton Long Sleeve
Snowberry Clearwing Moth - Hemaris diffinis - Men's Heavyweight 100% Cotton Long Sleeve
Common Earthworm - Nightcrawler - Lumbricus terrestris - Men's Heavyweight 100% Cotton Long Sleeve
Wildlife of the Great Smoky Mountains National Park - Men's Heavyweight 100% Cotton Long Sleeve
Garden Cosmos - Apollo White Cosmos bipinnatus - Men's Heavyweight 100% Cotton Long Sleeve
Painted Lady Butterflies - Men's Heavyweight 100% Cotton Long Sleeve
California Sea Lion - Zalophus californianus - Men's Heavyweight 100% Cotton Long Sleeve
Woolly Mammoth - Mammuthus Primigenius - Men's Heavyweight 100% Cotton Long Sleeve
Triceratops Horridus - Men's Heavyweight 100% Cotton Long Sleeve
Tyrannosaurus Rex - Men's Heavyweight 100% Cotton Long Sleeve
Saber-toothed Tiger Skull - Men's Heavyweight 100% Cotton Long Sleeve
Megalodon - Otodus Megalodon - Men's Heavyweight 100% Cotton Long Sleeve
North American Porcupine - Erethizon dorsatum - Men's Heavyweight 100% Cotton Long Sleeve
Capuchin Monkey - Cebus imitator - Men's Heavyweight 100% Cotton Long Sleeve
Ailuropoda melanoleuca - Giant Panda Sitting - Men's Heavyweight 100% Cotton Long Sleeve
Giant Panda - Men's Heavyweight 100% Cotton Long Sleeve
Silvertip Shark Front - Men's Heavyweight 100% Cotton Long Sleeve
Platanus Orientalis - Oriental Plane Tree Stem with Leaves - Men's Heavyweight 100% Cotton Long Sleeve
Forest Explorer - Men's Heavyweight 100% Cotton Long Sleeve
Coyote - Canis latrans - Men's Heavyweight 100% Cotton Long Sleeve
Kuwohi - Great Smoky Mountains National Park - Men's Heavyweight 100% Cotton Long Sleeve
Silkie Chicken - Men's Heavyweight 100% Cotton Long Sleeve
Black-billed Magpie - Pica hudsonia - Men's Heavyweight 100% Cotton Long Sleeve
Hibiscus Flowers - Men's Heavyweight 100% Cotton Long Sleeve
Huntsman Spider - Olios giganteus - Men's Heavyweight 100% Cotton Long Sleeve
South Lake Tahoe Black Bear - Men's Heavyweight 100% Cotton Long Sleeve
Leo - Lion - Men's Heavyweight 100% Cotton Long Sleeve
Cancer - Crab - Men's Heavyweight 100% Cotton Long Sleeve
Carnations - Dianthus caryophyllus - Men's Heavyweight 100% Cotton Long Sleeve
Black Rhinoceros - Diceros bicornis - Men's Heavyweight 100% Cotton Long Sleeve
California Condor - Gymnogyps californianus - Men's Heavyweight 100% Cotton Long Sleeve
Parasaurolophus Skull - Men's Heavyweight 100% Cotton Long Sleeve
Allosaurus Fragilis - Men's Heavyweight 100% Cotton Long Sleeve
Chinstrap Penguin - Pygoscelis antarcticus - Men's Heavyweight 100% Cotton Long Sleeve
Death's-head Hawkmoth - Acherontia atropos - Men's Heavyweight 100% Cotton Long Sleeve
Heart Full of Autumn Leaves - Men's Heavyweight 100% Cotton Long Sleeve
Papa Bee - Men's Heavyweight 100% Cotton Long Sleeve
