High strength and durable nylon ripstop fabric, scratch resistant,and not easy to fade after long-term use, and wear resistance higher 10 times than conventional polyester fabric tension. Fit for 500ml bottled water. You can easily use with the load on the large package, make your backpack more personalized and practical, but also can be hung on a belt. Mesh fabric, durable nylon and mesh fabric with high resilience combined, permeability stronger, more suitable for outdoor use. Travel essentials, outdoor climbing leisure outings pocket, hiking cycling satchel. It is a stylish, comfortable and convenient way, to take your water or beverage with you, wherever you go.