"Made of high-quality, breathable knit jersey Stretchy, long-wearing, and naturally absorbent Our cotton ski pajamas for men are made of high-quality, breathable knit jersey that is warm and comfortable. We emphasize the advantages of cotton jersey, which is stretchy, long-wearing, and naturally absorbent. You won't wake up in a sweat, as you can when wearing synthetic fabrics. Features include knit cuffs on legs and arms, three-button Henley neck (never too tight), elastic waist, and fly front. Full cut to compensate for first-wash shrinkage. All colors are 100% cotton except gray, which is 85% cotton, 15% Viscose. Machine wash and dry. Imported. "