The ALPS Mountaineering Swift Insulated is an extremely lightweight insulated air mat weighing in at mere 1 pound 5 ounces. With the added benefit of premium insulation, the Swift Insulated provides an R-Value: 3. The compact packing size and lightweight, yet durable construction makes it the perfect air mat for your cold weather backpacking adventures! The small pillow-like air chambers provide extra support and comfort for a restful night’s sleep. A flat valve allows for easy and quick inflation and deflation. A convenient stuff sack and repair kit are included.