MAIN FEATURES THREE-LAYER FOUR-SIDED ELASTIC DESIGN Four sides use Oxford cloth, the middle use mesh, good elasticity, toughness foot. ENGINEERING PLASTIC MATERIAL Able to bear more tension, nylon rope elasticity and resilience is very good, Can carry more weight. SUPER CAPACITY STORAGE SPACE Unique three-layer mesh bag design can store more items, such as bags, water bottles, tissues or other small items.