Runners Hydration Backpack Pack with 2 Liter Water Bladder for Running Cycling Marathons LIGHTWEIGHT Running Hydration Pack with 2 Liter PEVA Wide Mouth Water Bladder DURABLE and COMFORTABLE: Made with Durable Coated Ripstop Material, Back Padding for Comfort, Chest Strap with Adjustable Buckle for Securely Attaching Extra CONVENIENT STORAGE: Mesh Pocket Front Panel, Bungee Cargo Loops for Extras, Zippered Exterior Compartment plus Main Storage Compartment for Water Bladder and More. Great for Carrying Snacks, Gu, Gels, Phone and More. Not Bulky. Overall Size: 10 Liter. EASY CLEAN Wide Mouth Water Bladder and Hose Included, 2 Liter, Bite Valve for Controlled Water Consumption. 100% Odorless, Tasteless FDA Safe Material. Leak Proof Cap MULTI SPORT USE  Great for Runners, Trail Running, Marathon Use, Biking, Hiking, Canoeing, Kayaking and More