Adjustable Shoulder Straps - Tough And Lightweight Nylon Material - Side Buckle Strap Secures Belongings - MOLLE Outlines The Sides Of Pack - Heavy-Duty Double Zippers Keep Pack Closed - Hook And Loop Panel On The Face Of Pack Can Be Used For Morale Patches. - Hydration Pouch Can Be Used To Quench Thirst. In the Box 1x Hydration Backpack 1x Hydration Pouch Specifications: Material NylonOperation Hydration PackColor COYOTE BROWN California Proposition 65 Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov