Suited to mountaineering, trekking, and, fast & light camping adventures Rab's Stratosphere 4 Sleeping Mat boasts an excellent warmth-to-weight ratio. 

Features:

• Stratus™ R insulation traps air and reduces heat loss from convective currents
• Lightweight construction and insulation for superb warmth-to-weight ratio and minimal pack size.
• Oversized outer chambers help keep you centralised on the mat
• Hybrid rectangular shape allows various comfortable sleeping positions
• Low profile two-way valve for easy inflation and deflation
• Pump sack included for rapid and hygienic inflation
• Roll-away stuff sack with the repair kit included

Materials:

• Fabric Main:75D Recycled Polyester outer fabric with internal TPU Coating and fluorocarbon free DWR
• Insulation: Stratus™ R 100% recycled polyester 160gsm insulation

Specification:

• Weight: 610g 
• R-Value: 3.8
• Thickness: 8cm
• Dimensions: Regular 183x51cm