When both warmth and low weight are crucial, the Ultrasphere 5 is the ultimate packable, feather-light air mat, honed for fast-paced exploring in demanding mountain conditions. Its groundbreaking design includes two layers of Tilt, which boosts the mat’s warmth-to-weight ratio by reflecting heat back towards your body, all for a fraction of a gram. It also features new offset air chambers that trap heat within the construction, allowing you to recharge comfortably without the need for high-volume insulation. Highly comfortable and supportive, the Ultrasphere 5 is the ideal foundation for thru-hiking, bikepacking, and multi-day mountain runs.
- Impressively light
- The weight-saving construction uses offset air chambers to trap heat and keep you warm
- Two layers of heat-reflective TILT reduce radiant heat loss without adding weight
- Comfortable tapered mummy shape that eliminates unnecessary bulk
- Soft, exceptionally lightweight 20D fabric
- When it’s time to pitch for the night, the two-way valve and inflation sack make camp setup quick and easy
- Roll-away stuff sack with repair kit included
- R-value: 4.9
- Thickness: 8 cm
- Dimensions:
- Regular: 183 cm x 51 cm x 8 cm (72 in. x 20 in. x 3.1 in.)
- Regular wide: 183 cm x 64 cm x 8 cm (72 in. x 25 in. x 3.1 in.)
- Long wide: 196 cm x 64 cm x 8 cm (77 in. x 25 in. x 3.1 in.)
- Weight:
- Regular: 345 g (12.2 oz.)
- Packed size:
- Regular: 15 cm x 9 cm (5.9 in. x 3.5 in.)
- Regular wide: 19 cm x 9 cm (7.5 in. x 3.5 in.)
- Long wide: 19 cm x 9 cm (7.5 in. x 3.5 in.)