Jolly Sweaters Penguin W Headset Winter Ski Skating Sweater, Unisex, 100% Acrylic 100% Acrylic Imported Hand or machine wash (gentle cycle) in cold or warm water. Sizing across chest: XS 17 1/2 S 18 1/2 M 19 1/2 L 21 1/2 XL 23 XXL 24 Total Length: XS 23 S 23 1/2 M 24 L 27 XL 27 1/2 XXL 28 Shoulder Width: XS 13 S 13 1/2 M 14 L 17 1/2 XL 19 XXL 20 Sleeve Length: XS 23 S 23 1/4 M 23 1/2 L 25 XL 25 XXL 25 All sizes are in inches; May want to buy one size larger than usual, as they run small.