Features Fabric/Nylon Wraptor Stabilization Technology Keeps Our Running Packs Sitting Soundly On The Shoulders With No Bounce Or Stride-Killing Side-To-Side Shift Hydrapak Shape-Loc Reservoir Hose Management System Dual-Loop Hydration Hose Routing With Magnetic Clip Dedicated Trekking Z-Pole Pocket Easy To Secure And Quick To Release Bungeed Ultra-Light Trekking Pole Padded Pocket Weather shield Pocket Water Resistant Phone/Accessory Pocket Description Product Description Inspired by the torturous conditions of the Ultra-Trail du Mont-Blanc, we developed the best-fitting ultramarathon pack ever: the Tempo 8. Designed around the equipment requirements for UTMB entry, the Tempo 8 fits a rain shell, warm layers, food, two liters of water, a whistle, a survival blanket, and a headlamp in its generous main, secondary, and hydration compartments. External pockets stow trekking poles, your smartphone, energy food, gloves, trail trash, and more, with the biocompatible comfort of Fluid Mechanics and the zero-bounce stability of Wraptor technology.