DIVIDED STORAGE DESIGN: The string bag has two main storage spaces. You can separate the dirty shoes or sweaty clothing or towels from the other things. LIGHTWEIGHT & WATER RESISTANCE: Made of 420D nylon material, the Gym sack is lightweight and can hold more loads. The superior nylon is also water resistance, Water repellent feature is enough for unexpected splashing water. LARGE CAPACITY: Size: 40x27x20cm/15.7x10.6x7.9". There are 1 main bag, 1 front zipper bag, 1 inner zipper bag, 2 insertion bags, an invisible zipper bag, and a separate area for shoes. The string backpack can hold all your stuffs for sport travel or daily use.