When you're on the mountain, the last thing want to do is waste time fumbling through a pack looking for the one piece of gear that fell to the bottom-especially when you're wearing gloves. The SnoBlast's tri-zip design lets you choose between opening the top of the pack, or unzipping it down the side to instantly access all of your gear. This versatile, compact pack is perfect for carrying your lunch, shed layers, helmet and 2 liters of hydration for a full day on the slopes. Unzip the size panels, and the SnoBlast expands to offer an extra 6 liters of storage for additional gear. When you really want to load up, the external attachment points let you carry a helmet and snowshoes on the outside of the pack. The Therminator(TM) harness also keeps your insulated drinking tube zipped securely into the shoulder strap, which keeps it from freezing in cold weather.FeaturesThe brand new Crux Reservoir delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks.Snowshed Back Panel: Back panel repels snow and keeps it from sticking to your packTherminator Harness: Drinking tube zips into an insulated sleeve in the shoulder strap to protect your water supply from the elementsTri-Zip Access: Three-zipper design lets you unzip the side of the pack for quick access to gear stored at the bottomExpansion Panel: Expansion panel unzips to add more storage capacity to your packCargo compression cinches your cargo where it counts for a secure and comfortable carryAdjustable sternum strap slides up and down the harness for a custom, chafe-free fit.SpecificationsUser Group UnisexBPA/BPS/BPF Free trueDimensions 55 x 25 x 17 cm / 21 x 10 x 6.5 inBack Panel Snowshed(TM): Molded back panel with moisture-wicking DWR finish for snow-shed capability.Quick Link trueWaist Belt Removable 25 mm/1" stability beltPack Weight 750 g/1 lb 10 ozHydration Type CRUX(TM) Reservoir with Quicklink(TM) SystemTorso Fit Range 43-53 cm/17-21 inHarness Therminator(TM): Closed-cell foam insulation shelters tube and reservoir against extreme temperatures.Gear Capacity 21L/1280 cu inHydration Capacity 2L/70 fl ozAccessories Included Insulated Tube CoverGear Range Long Haul Moderate