Made with our renowned 80% Cotton/20% Polyester 9 oz fleece. Our Big Cotton Crew is brushed inside and out for the coziest fit and feel and is sure to become your favorite wardrobe essential! With our Big Cotton Crew, you’ll get 1x1 Cotton/Spandex rib at collar, V-notch, cuff, and waistband. Colors 910, 950 & 7091 are 75% Cotton/25% Poly.