RAB Ultrasphere 1.5 dark pewter Sleeping bag

When you’re carrying everything on your back for several days, every gram counts. The Ultrasphere 1.5 weighs just 310 g and takes up very little space when folded. It’s made for summer hiking, bikepacking and multi-day mountain trips where you want to sleep comfortably and not carry anything unnecessary. In the evening, you can inflate it with a pump bag, deflate it in the morning, roll it up in the carrying bag and you’re ready to go.

1. Minimum weight and volume
   The soft 20D fabric and tapered mummy shape save material where it’s not needed, so the sleeping pad weighs just 310 g and takes up little space in your backpack.
2. Comfort and insulation from the ground
   The offset air chambers trap heat inside the sleeping pad without a bulky insulation layer and the 8 cm height provides a comfortable distance from the ground. The thermal resistance R 1.4 places it in the warmer part of the year.

• Weight 310 g (Regular)
• Thermal resistance R 1.4
• Lightweight 20D fabric
• Offset air chambers
• Tapered mummy shape
• Two-way valve
• Pump bag included in the package
• Carrying bag with repair kit
• No intentionally added PFAS

Specifications:

Weight: 310 g (Regular)
Dimensions: 183 x 51 x 8 cm (Regular)
Package dimensions: 15 x 9 (Regular)
Thermal resistance R: 1.4
Main material: 20D fabric
Recycled content: 20 % total, 15 % in fabrics
Renewable energy share in production: 41 %
Package contents: pump bag, roll-up carrying bag, repair kit