The North Face designed the Thresher Hydration Pack to stay out of your way during long trail runs. Adjust the shoulder, sternum, and waist straps for a smooth fit, and let the magnetic hydration bite valve stick neatly to the pack so it won’t flop around as you jog. Bring your keys and energy bars along, and if rain clouds are on the horizon, just cinch a jacket in the Thresher Pack’s outer bungee strap. A resilient and taste-free Nalgene Encapsul water reservoir resists bacterial growth, so if your drink looks greenish, it’s just because your roommate put an energy drink in there. Bottom Line: Worry-free hydration. Material: 210 HT Ripstop Cordura nylon Volume: 250cu in (4L) Reservoir Volume: 70oz (2.1L) Pockets: 1 Main, 1 outer zip Waist-belt: Yes, removable Bite Valve: Articulated magnetic Bite Me Valve Weight: 12oz (325g) Recommended Use: Trail running, biking, light hiking