The XTherm air mattress delivers the greatest warmth-to-weight ratio available in any air mattress by far, with a new, softer, textured no-slip fabric for better next-to-skin comfort and a quieter rest. Multiple , reflective ThermaCapture™ layers give the XTherm air mattress true four-season warmth without the weight or bulk usually found in a winter-worthy mattress. And now, the all new XTherm™ MAX delivers all the great features and benefits of the original XTherm in a full rectangular shape, providing added coverage and warmth for extreme temps and wider torsos. Stuff sack and repair kit included.
Details
- Unmatched Warmth-to-Weight: Patent-pending, reflective ThermaCapture™ technology traps radiant heat while Triangular Core Matrix™construction minimizes convective heat loss–all without the bulk, weight or durability issues of down and synthetic fills.
 - Excellent Comfort: 2.5” (6 cm)-thickness, new, soft-touch fabrics and baffled internal structure provide unrivaled stability and support.
 - Highly Packable: Free of bulky, conventional insulating materials, the XTherm™ mattress packs to the size of a one-liter water bottle.
 - Ultralight: Advanced materials and a tapered design reduce weight without compromising warmth.
 - NEW – XTherm MAX – All the performance of the original XTherm with added coverage for extreme temps and larger torsos.
 
| MAX REGULAR | MAX LARGE | |
| Color | Vapor | Vapor | 
| R-Value | 5.7 | 5.7 | 
| Weight | 1 lbs 1 oz / 490 g | 1 lbs 7 oz / 640 g | 
| Width | 20 in / 51 cm | 25 in / 63 cm | 
| Length | 72 in / 183 cm | 77 in / 196 cm | 
| Thickness | 2.5 in / 6.3 cm | 2.5 in / 6.3 cm | 
| Packed dimension | 9 x 4.0 / 23 x 10 | 11 x 4.5 / 28 x 11 | 
| Top fabric type | 30d Rip Nylon | 30d Rip Nylon | 
| Bottom fabric type | 50d Polyester | 50d Polyester | 
| Country of Origin | Made in the U.S.A. of U.S. and Imported Materials | Made in the U.S.A. of U.S. and Imported Materials |