Body: 95% cotton, 5% spandex
Underarm: 70% cotton, 30% polyester
SSW business slim fit undershirt with sweat pads is made from fine cotton. An underarm insert made from a special, highly absorbent material ensures that your armpit remains dry and prevents sweat from penetrating the external part of the undershirt and staining other apparel. Forget about yellow stains and washing at high temperatures which ruin your clothes.