Trailform Chameleon FROST - 22liter Backpack/Cooler/Chair3 in 1, Backpack, Cooler and Chair: The FROST does triple duty. With built in insulated cooler pockets, an expandable storage capacity and an ultra lite chair, you get maximum versatility, luxury and comfort, packed into three pounds. Expandable roll top storage capacity 6 total pockets for organized packing 2 FrostecTM insulated cooler pockets Available custom sized ice packs Weighs 2. 9 pounds, (includes chair frame) Supports up to 300 pounds.