If you are after the comfort of Fat Mat camping but the weight of some of the lightest pads around, the Numo is the pad for you. Because there is no foam inside, the mat packs down very small, however you'll need to provide all the puff to inflate it. Once inflated you'll be rewarded with 7cms of cushioning to see off those lumps and bumps. Constructed from TPU coated 33D Ripstop Nylon it is burly enough to ward off unwanted punctures but light enough to forget about. The upper portion of each tube is filled with a hollow fill fibre to help trap and prevent movement of air thus improving the insulation of the mat. The insulation is bonded to both the top and the bottom of the tube to ensure it completely fills the void.