Rab Ultrasphere 4.5

Whether for bikepacking in the mountains or for extensive trail running experiences, the award-winning Rab Ultrasphere 4.5 air mattress offers excellent thermal performance without compromising on weight. Thanks to its revolutionary design featuring two layers of heat-reflective TILT material that minimizes radiant heat loss, and offset air chambers that trap warmth within the construction, it allows for a comfortable night's sleep without the need for bulky insulation. Due to its lightweight materials and efficient design, it is ideal for bikepacking trips, hikes, and multi-day mountain tours. With its ergonomically shaped, tapered mummy form that avoids unnecessary bulk, this mattress provides a thick and supportive sleeping surface essential for recovery and recharging energy for upcoming adventure days. The flat two-way valve and inflation bag ensure a quick and easy setup of the mattress. Equipped with a repair kit and an unbeatable ratio of thermal performance to weight, the Ultrasphere 4.5 is specifically designed for dynamic expeditions in challenging alpine conditions.