Size:16.53*12.6*5.9"WATERPROOF DRAWSTRING BAG-- Double layer water-resistant fabric, help keep sack dry not afraid rainy day anymore. Made of durable and sturdy nylon materials, not easy to be scratched or torn. All your things inside will be protected very well.LARGER CAPACITYMain sport backpack for hold clothing, shoes, slippers, towel, laptop, books, water bottle, daily supplies, etc. Front zipper bag and other small pockets give you perfect classification for small items like phone, keys, ID cards, makeups, wallets, etc. ADJUSTABLE WIDE SHOULDER STRAPS-- Super wide shoulder straps, adjustable and feels no bulky in wearing. Main compartment with draw cord closure for easy access.