- Extra-thick and extra-warm 4-inch air mattress provides a plush, insulated sleeping experience for winter (6.2 R-Value) camping and backpacking
- Single-layer Air Sprung Cell construction mimics a spring mattress, using fully-insulated flexible loops for warmth and comfort
- Multi-function valve for fast inflation in just a few breaths (using integrated Airstream Pumpsack), one-way deflation for quick packup, and fine-tuning of air pressure
- Insulated pad features high-loft fiberfill and reflective fabric, to prevent heat loss and radiate heat back during sleep; non-slip 30D/40D nylon face fabric is durable and quiet
- Tapered - Large size measures 78 x 25 x 4 inches, packs to 7.3 x 11 inches, weighs 2.1 pounds; includes stuff sack, field repair kit, and PillowLock patches for securing a Sea to Summit pillow to mat
