Teton Sports Trailrunner 2.0 Hydration Pack w/Water Bladder Hydration Port- adjustable to Right/Left side Ripstop Construction- Tear Resistant 2 Liter(70oz) Water Bladder Outer Mesh Pocket- large enough to hold some belonging- keys, phone, snacks or a lightweight jacket Compression Bungee System- extra gear Reflective Safety Trim Ergonomic Wide Shoulder Straps Safety Whistle Waist Belt Carry Fluid without the bulk with a hydration pack that has an adjustable fit. Room for essentials, and water pouch. Activewear, Outdoors, Hiking, Trailing, Camping, Canoe, Kayaking, Adventure, Activities. Size 16" x 10" x 2" Waist Range 40.5" Capacity 2 Liters Weight 0lbs Brand New Never Used Excellent Condition!