WATER NEVER TASTED SO GOOD: During a long hike having water so convenient and still cold…there’s nothing like it. Lightweight with a custom fit, you’ll forget you have it on until you need it. This hydration pack give you plenty of water for your day hike HYDRATION BLADDER INCLUDED: 2-liter water bladder included; Complete with durable, kink-free sip tube and innovative push-lock cushioned bite valve; Large 2-inch (5 cm) opening for ice that also makes cleaning easy GET THE PERFECT FIT: Low-profile athletic cut with full adjustment fits all body types comfortably; Comfort-taped straps with high-density foam means you can wear this pack comfortably for hours, Water backpack for hiking fits men, women, and youth LOADED WITH FEATURES: The Trailrunner hiking backpack with 2L hydration bladder; Large pocket with a hidden-teeth zipper: Weather guard protects everything you’re packing; Bungee cord system for bike helmet; etc. TETON SPORTS PROMISE: Reach out to our AMAZING product support team if you have any questions or concerns; YOU CAN COUNT ON US to get you taken care of and back OUTDOORS