Thermarest NeoAir XTherm WV Mat, Vapor Sleeping

When your backcountry pursuits demand extreme insulation and an ultralight packed size, alpinists and mountaineers turn to the NeoAir XTherm.

FEATURES:
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.
Ultra-Packable: Low-bulk materials make the mattress ultra-compact—as small as a water bottle.
WingLock™ Valve: An intuitive and dependable valve maximizes air flow for easier inflation and quicker deflation. Wings toggle for one-way inflation to save breath.
Pump sack, stuff sack and repair kit included

SPECIFICATIONS:         
                       Regular           Large
R-Value            6.9                 6.9
Weight             430 g              570 g
Width               51 cm             64 cm
Length              183 cm           196 cm
Thickness          6.4 cm            6.4 cm
Packed dim.       23 x 10cm       28 x 11cm
Top fabric type       30D Rip Nylon
Bottom fabric type  70D Nylon
Core                      Nylon