Personalized Under Arm Hair Pink T-Shirt. Under arm hair is the best kind of fashion to wear, if you're human and you have hair on your body. Let the world know you don't work out, and have hair. Wardrobe essential for looking good, 24/7. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar. Shoulder-to-shoulder taping. Double-needle stitched sleeves, bottom hem and front neck. Note: greys are a cotton/polyester blend.