Granite Rocx Cascade Backpack Detachable Cooler Hiking/Trekking/Beach Multi-Purpose Bag BACKPACK: Allows one to carry any type of flat folding chair or other equipment. The back panel of the bag unzips. Squeeze buckles with long, reinforced straps allow the chair or other equipment to remain stable/securely held at the back of the pack. This allows for one to have padding between their back and the chair for comfort. BACKPACK: Pouch in the back compartment for hydration system with clip to hang. The bottom of the backpack contains straps with squeeze buckles to carry a cylindrical folding chair, tent, yoga mat, towel, etc. BACKPACK: Two squeeze buckles and straps on both sides for additional carrying options. Shoulder strap clip. Adjustable sliding chest strap. Side or center adjustable waist straps with padding. BACKPACK: Shoulder strap pocket for phone, iPod, etc. Front pocket organizer with key clip. Side pockets for drinks, etc. Front bungee system to hold a towel, jacket, etc. COOLER: Detaches from the backpack if desired. 12 can. Removable heat sealed insulation for hot and cold. Use ice, will NOT leak! Detachable shoulder strap. Front and back pockets for additional carry.