Shop a great selection of short sleeve and long sleeve outdoor t-shirts by Adayak. We have tees for hiking, kayaking, fishing, camping, climbing and more. Most of our shirts are made from 100% organic cotton, but for those of you who like a spend hard days on the trail we also have 100% moisture wicking polyester. These shirts are lightweight and comfortable - helping you maintain that high comfort level while out in nature. Shop a great assortment of short sleeve and long sleeve t-shirts for men and women. Adayak has fast 3-day shipping for only $3.99 and free shipping on all orders over $50.