The Sea To Summit Ether Light XR Pro insulated bivy and expedition mattress is lightweight, thick, stable, and quiet. The 10cm thick Air Sprung mattress offers four-season comfort. With an R-Value greater than 6.2, the 10cm thick Ether LightXR Pro insulated mattress redefines sleeping comfort for winter adventures around the world. Sea to Summit's Air Sprung cells are the reason you'll sleep better. Each air cell deforms independently, allowing the mattress to perfectly follow the shape of your body. This provides additional support and comfort by distributing pressure across the mattress's surface. For the design of the EtherLight, Sea To Summit uses numerous TPU loops to connect the top and bottom fabric layers. These loops help create larger air pockets when the mattress is fully inflated. This design also requires less fabric overall, allowing for greater stability and comfort while remaining lightweight and compact.

Sea to Summit Ether Light XR Pro Bivy Pad Features

• Thermal Core Insulation
  
• Extra Thick (XR) Air-Sprung Cell Construction for Stable Comfort (10cm)
  
• Lightweight, quiet, and grippy 30/40D nylon fabric
  
• Field-repairable with included self-adhesive patches
  
• Ultra-Fresh® antimicrobial treatment added to the TPU formula prevents internal mold and mildew growth
  
• Pillow Lock™ secures an Eros™ pillow to the mattress
  
• Quick and easy inflation, deflation, and adjustment with the high-flow multi-function valve and pump bag Airstream™ included.
• Thickness 10 cm
• Small 168 x 55 cm | Folded: ø 12 x 21 cm | 525 g
• Regular 183 x 55 cm | Folded: ø 12 x 21 cm | 560 g
• Large 198 x 64 cm | Folded: ø 12.5 x 24 cm | 720 g