The Rab Hypersphere Ultra 7.5 is an exceptionally warm and lightweight down sleep mat, perfect for those who need to move quickly in cold environments. Designed for activities such as expeditions, mountaineering, and trekking, this mat combines the warmth of 800FP goose down with ultralight 20D recycled polyester fabric. Its hybrid rectangular shape offers comfort in various sleeping positions, making it ideal for winter alpine climbing or arctic ultra running. The mat's impressive R-value of 7.3 ensures excellent insulation, while its compact pack size makes it easy to carry on any adventure. Ultra-warm and lightweight down sleep mat for cold environments Ideal for expeditions, mountaineering, and trekking Filled with 800FP goose down for superior heat retention Ultralight 20D recycled polyester fabric for easy packing Hybrid rectangular shape for versatile sleeping positions R-value of 7.3 for excellent insulation Includes pump sack for quick and hygienic inflation Comes with a roll-