1. High quality and comfortable wearing: polyester lycra fabric. Not only durable, but also lightweight and compact for your run.2. Adjustable Shoulder Straps: With adjustable elastic straps, it fits most waist sizes. Breathable material keeps your body cool. No bounce, no chafing, no mess.3. Ample Storage: A large compartment and a small front poet provide independent protection for your phone against screen scratches, cash, keys and watches from water, sand, dust and dirt. Running, hiking, cycling and other outdoor s are easy and worry-free.4. Double-layer large poet, can hold up to 7 inches mobile phone