HIGH QUALITY AND WATERPROOF MATERIAL: The fanny pack is made of thick, durable, waterproof nylon with high quality zippers. Plus, there's a thick, breathable padding on the back that gives you the ultimate softness. Safety Reflective Stripes Design: Reflective stripes are designed to allow you to be seen in the dark. This is a good safety design for night running and hiking; LARGE CAPACITY: The men's and women's fanny packs have a large capacity and plenty of pockets, allowing you to carry everything you need for walking your dog, biking, running, hiking, mountaineering and other outdoor sports. Three ways to wear: First, it can be used as a fanny pack with adjustable waist belt. Second, the detachable shoulder strap allows you to wear it as a shoulder bag and crossbody bag