American Apparel Unisex 3.8 oz., 55/45 Long-Sleeve Baby Rib Thermal Crew Neck American Apparel Unisex 3.8 oz., 55/45 Long-Sleeve Baby Rib Thermal Crew Neck 55% cotton, 45% polyester 1/2" self binding on neck 3" cuffs will shrink an average of one size when put in the dryer