Constructed of bombproof Dyneema® gridstop nylon, the Pinnacle is the ultimate large volume ultra-lite pack. Foam padding in the back and hip belt wings provides support, and Brock™ foam padding beefs up the spacer mesh shoulder straps to ensure long-lasting comfort. A large front pocket with a watertight zip and two side angled stretch mesh pockets provide easy access to stored items, and two side compression straps plus the comPACKtor system neatly decompress unused pack space for smooth hauling. Pack Specs Volume: 4000 in3 | 61 liters Hydration: 3 Liter Hydration Compatible, Reservoir not included Fabric: Dyneema Stronger than steel and lighter than any other high-performance fiber Extremely durable and light polyethylene fibers – they float on water Chemical, water, and UV resistant Used to reinforce 210 Denier (medium-weight) ripstop nylon 10-times stronger than steel and 2-times stronger than Kevlar by weight The resulting pack fabric is extremely light and durable, and is somewhat water resistant – designed for the rigors of backpacking and mountaineering Features Imported Dyneema® gridstop Watertight zipper for roomy front pocket Comfortable foam back pad and hip belt wings Space mesh shoulder straps with Brock foam padding Adjustable sternum strap and webbing for hip belt Two side hydration openings with internal hydration sleeve Cord lock to secure top closure Two angled side mesh pockets with elastic top binding for easy access while wearing Ice axe loops with lightweight elastic cord and pack hook system for closure Two side compression straps with quick release buckles Top compression strap ComPACKtor system Haul Loop