Killer Condo Show Me Your Kitties Cat Sweater Unisex Sweatshirt Crew neck sweatshirts are a preshrunk fleece knit, pill resistant, lightweight 8.0 oz. 50 50 cotton polyester blend with double needle stitching at waistband and cuffs CHEST S 40 M 44 L 48 XL 52 measured in inches armpit to armpit then doubled for full circumference LENGTH S 27 M 28 L 29 XL 30 from center back to bottom hem SLEEVE LENGTH S 33.5 M 34.5 L 35.5 XL 36.5 from center back collar to end of arms extended outward; while unisex, our products do fit closer to mens sizing; most women order one size down unless extra room is preferred Machine wash on warm; machine dry on warm setting or hang to dry