The Ultra 3R is a 1-person inflatable mattress from Exped. The Ultra 3R mattress is rectangular and very compact. The integrated pump lets you inflate the mattress quickly and easily without having to wear yourself out. In addition the insulation is ideal for use in all seasons and its 7cm thickness ensures excellent comfort. In short the Ultra 3R mattress is ultra-light and perfect for trekking hiking and mountaineering! The Ultra 3R is the worlds lightest mat at its warmth and comfort levels! It packs to an extremely small size and its tapered profile fits into the smallest tents. Tapered design and 20 denier fabric for weight reduction microfiber insulation for 3-season warmth and 7cm thickness for comfort. This mat proves that comfort and warmth need not be sacrificed in pursuit of super light packing. Next-to-skin comfort and anti-slip GripSkin honeycomb-pattern coating. Laminate is air tight and impervious to hydrolysis. It also doubles as an ultra lightweight compression stuffsack.