KLIM built the Quench Pak to be light and fast and keep you hydrated without weighing you down. Equally at home on the race circuit as mountain single-track, carry your water with you without restricting your range of motion or weighing you down. Low-profile hydration backpack. Included 1.5 liters / 2 liters KLIM Hydrapak® reservoir with Shape-Shift™ baffle. KLIM® harness system. 3M™ Scotchlite™ reflective material. EVA molded back pad. Emergency whistle. Bite valve retention clip. Ventilated foam. Can connect to the Scramble Pak (sold separately) for modular upgrade. Internal zippered mesh pocket. Can attach the KLIM tool pak (not included). Compression straps. YKK® heavy-duty zippers. Dimensions: 1.5" x 9" x 15".