Camel Bak Cloud Walker 18 Hydration Pack 85 oz Walkin' On Sunshine The Cloud Walker 18 Hydration Pack is designed for those who crave adventure with ample storage for your essentials and a reliable hydration system to keep you refreshed. The breathable back panel and adjustable straps keep you comfortable on all terrain making it perfect for day hikes, bike commutes, or just hanging in the park. Features Stay hydrated all day with included 2. 5L reservoir and secure tube clip Breathable back panel provides ventilation to keep you cool and comfortable Removable waist strap for added stability when needed Secure pockets Trekking pole attachment stores your trekking poles when not in use Side cargo pockets gives you additional storage for quick-access items Compression straps help stabilize your load and reduce bulk MFG#: 2531001000SPECIFICATIONSIntended Use Hiking, Biking Bag Fit Unisex Bag Style Backpack Gear Capacity18 LHydration Capacity2. 5 LWeight1 lb 2 oz / 500 g Dimensions18" x 10" x 9"Torso Fit15" - 19"Waist Fit26" - 46"Material Ripstop with DWR, Nylon, Recycled Mesh Accessories Included Crux 2. 5L Reservoir | Camelbak | Cloud Walker 18 85Oz Hydration Pack 85Oz, Navy | Nylon