The lightest, most packable chair out there. Hex 2.0 Original rollS up to 4" in diameter. Perfect for backpacking. Includes an improved 8mm high-density cored EVA closed-cell foam, water-resistant, a breathable 70D coated custom ripstop nylon inner surface and a 210D coated ripstop nylon outer fabric. Dimensions: 33" x 15". Wt: 21 oz.