Rab Hypersphere Ultra 7.5 Down inflatable trekking mattress

The Hypersphere Ultra 7.5 by Rab is an ultralight down-filled inflatable mattress designed to provide maximum thermal insulation during fast missions in extreme environments, from winter mountaineering to arctic ultra running. With an exceptional R-Value of 7.3 and a weight of only 610 grams, this model sets a new standard in the heat-to-weight ratio, utilizing premium 800FP European goose down insulation with Nikwax fluorocarbon-free water-repellent finish. The 8 cm thickness and oversized outer air chambers ensure comfortable and stable support, keeping the body centered on the mattress, while the hybrid rectangular shape adapts to various resting positions. Made with an extremely lightweight and compressible 20D recycled polyester fabric, the mattress takes up minimal space in the backpack and features a low-profile two-way valve for rapid inflation and deflation. The model is available in Regular (610g - 183x51 cm), Regular Wide (741g - 183x64 cm) for a wider surface, and Long Wide (789g - 196x64 cm) for those needing extra length. Included in the package, the handy pump sack allows for hygienic and quick inflation, preserving the integrity of the down from moisture in the breath. Complete with a transport sack and repair kit, the Hypersphere Ultra 7.5 is the ultimate choice for athletes and mountaineers who cannot compromise between thermal protection and lightweight.