Size :US S, US M, US L, US XL. There are various types of storage zipper pocket. US SIZE US S US M US L US XL. LENGTH 24″(61cm) 25″(63.5cm) 26″(66cm) 27″(68.5cm). Material :Polyester. CHEST 21.3″(54cm) 22″(56cm) 23.2″(59cm) 24″(61cm).