Ultralight, high-performance sleeping mat designed for fast-paced mountain adventures.
What is the Rab Ultrasphere 4.5 Reg Wide good for?
The Rab Ultrasphere 4.5 Reg Wide Sleeping Mat is the ultimate combination of warmth, low weight, and packability. Designed for bikepacking, thru-hiking, and multi-day mountain running, its innovative construction includes two layers of heat-reflective TILT, which reduce radiant heat loss, and offset air chambers that trap warmth while minimising bulk. With an R-value of 4.3, it provides excellent insulation for three-season use without the need for high-volume fill.
Who is the Rab Ultrasphere 4.5 Reg Wide good for?
Ideal for fast-moving adventurers, this mat is perfect for ultralight hikers, mountain runners, and bikepackers who need a warm, supportive sleep system without unnecessary weight. Whether you're tackling high-altitude trails, lightweight camping, or fast-and-light missions, the Ultrasphere 4.5 keeps you comfortable and well-rested.
When and where should the Rab Ultrasphere 4.5 Reg Wide be used?
Best suited for rugged backcountry environments and demanding mountain conditions, this mat excels in cooler climates where warmth retention and minimal packed size are key. Its tapered mummy shape removes excess bulk while still providing thick, supportive cushioning for a restful night’s sleep.
How will some of the key features of the Rab Ultrasphere 4.5 Reg Wide enhance my experience?
Key features include its 8cm thickness for superior comfort, a low-profile two-way valve for fast inflation and deflation, and an included pump sack for hygienic, hassle-free setup. It also comes with a roll-away stuff sack and a repair kit, ensuring durability on extended trips.
Why choose the Rab Ultrasphere 4.5 Reg Wide?
You would choose the Rab Ultrasphere 4.5 Reg Wide Sleeping Mat for its unbeatable warmth-to-weight ratio, compact packed size, and cutting-edge insulation. Whether you're racing the clock on a multi-day trek or pushing your limits in the mountains, this award-winning mat delivers lightweight performance without compromising on comfort.
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