Leaning on our decades of expertise in high-performing down jackets and sleeping bags, we’ve crafted our definitive down-filled mat for lightweight missions in cold environments. Powered by 800FP down and ultralight 20D fabric, it offers exceptional warmth for its weight. Whether you’re taking on an arctic ultra race or travelling to high altitudes by rope and sharps, this incredibly warm yet light and packable down air mat is ideal for fast-moving pursuits in extreme conditions. Rab Hypersphere Ultra 7.5 Regular Wide Features: R-Value: 7.3 Thickness: 8cm Oversized outer chambers help keep you centralised on the mat Lightweight construction uses air and insulation for superb warmth-to-weight ratio and minimal pack-size 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 repair kit included Embossed 20D recycled polyester with 5.5S TPU coating (LW glue) 20D recycled polyester with 5.5S TPU coating (LW glue) 800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (190g /6.7oz) 100% Recycled Polyester 610g/21.5oz(Reg) Regular: 183cm x 51cm x 8cm. Long Wide: 196cm x 64cm x 8cm