Nylon17.3 x 12.6 x 5.9''WATERPROOF GYM BAG - With rainproof and waterproof fabric, you will never find your things dripping wet in your bag. The materials are made of strong and sturdy nylon, not easy to be scratched or torn. All your things inside will be protected very well.COMFY ADJUSTABLE WIDE SHOULDER STRAPS - Wide, adjustable and sturdy shoulder straps make this gym string backpack more comfortable and durable. The shoulder straps can be easily adjusted, making you no worry about hanging low or high on your back. You will not feel uncomfortable even if you wear it for a long time.LIGHTWEIGHT and MANY POCKETS - 1 main compartment for carrying your workout equipment, sports gear, clothing, shoes, towel, laptop, daily supplies, etc. I Inside Zipper Pocket, 1 Front Zipper Pocket and 1 Back Zipper Pocket give you perfect classify for your items like phone, keys, ID cards.HIGH QUALITY ACCESSORIES - Drill Nylon material make it not easy to lose the color and keep an active look. Comes with strong and sturdy zipper, double sewed, double high quality. Plating metal on shoulder straps give you perfect adjustable length and years of use.INTENDED USES - Our gym backpack is unisex and fit for multiple activities, like swimming, walking, day trips, camping, sports practices, overnight stays, vacation, travel, yoga, running, shopping, jogging, gym sports. It can carry basketball, soccer/football, tennis racket, wrestling gears, boxing gloves, volleyball, yoga mat, golf balls, paintball, etc.