NEVO RHINO 3-in-1 Cooling Hydration Backpack with Bladder & Soft Water Bottle

5L Large Capacity, Ergonomic Design, Quick-Connect System, Heat Relief for Long-Distance Running, Hiking,, Swimming - Lightweight & Durable Outdoor Backpack for Men & Women, Ideal for Sports, Travel, Festivals (Green/Black) - Compatible with Smartphones & Tablets, Easy-Fill Tube System