men's 4-pack big & tall sleeveless undershirts stretchy cotton spandex tank tops Designed to be longer and made of super stretchy fabric, these shirts are especially suited to big & tall body types. Highly stretchable cotton fabric that retains its shape even after multiple washes. Tighter fitting, like a second skin. Strong and flat seams, less cracking, more comfort. Model is 6'height,55”chest, 55”waist,270 lbs weight, wearing in size 5XL.