Thermarest Neoair X-Therm

More warmth per gram than any other air mattress in the world.

The XTherm air mattress delivers the greatest warmth-to-weight ratio available in any air mattress by far, with a 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. Stuff sack and repair kit included.

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: 6cm-thickness, soft-touch fabrics and baffled internal structure provide unrivalled stability and support.
Highly Packable: Free of bulky, conventional insulating materials, the XTherm mattress packs to the size of a one-litre water bottle.
NEW WingLock Valve: Our intuitive and dependable valve maximizes air flow for easier inflation and quicker deflation. Wings toggle for one-way inflation to save breath.
Ultralight: Advanced materials and a tapered design reduce weight without compromising warmth.

R-Value: 6.9
Thickness: 6.4cm
Top fabric type: 30d Rip diamond
Bottom fabric type: 70d Nylon
Core: Nylon

Regular:
Weight: 430g
Width: 51cm
Length: 183cm
Packed dimension: 23 x 10cm

Large:
Weight: 570g
Width: 64cm
Length: 196cm
Packed dimension: 28 x 11cm

Regular Max:
Weight: 490g
Width: 51cm
Length: 183cm
Packed dimension: 23 x 10cm

Regular Max Wide:
Weight: 610g
Width: 64cm
Length: 183cm
Packed dimension: 23 x 10cm

Large Max:
Weight: 640g
Width: 63cm
Length: 196cm
Packed dimension: 28 x 11cm