This is an ideal option when you are running, taking exercise, walking the dog, cycling, hiking, and traveling. The large capacity allows you to hold phones, keys, bank cards, cash, and other valuables easily while doing outdoor sports. The size of the bag is adjustable and suitable for the waist between 65cm-120cm. The neoprene waist pack is made of high-quality waterproof material (Neoprene with Lycra), to keep your valuables from sweat and rain. The reflective bar on running increases your visibility in poor lighting conditions.