The Solar Ultra 2 in a nutshell is: a sleeping bag optimized for your comfort. This sleeping bag from the brand Rab is extremely lightweight and will accompany you during your mountain adventures this summer. Its accordion design ensures optimal heat retention so that even in cool weather, you stay warm! Material: Atmos™ 20D recycled ripstop nylon fabric (38 g/m²) with fluorocarbon-free DWR Lining: Atmos™ 20D recycled polyester ripstop fabric (41 g/m²) with fluorocarbon-free DWR Scrim: 100% polyester canvas with aluminum coating (15 g/m²) Top: Stratus recycled synthetic sheet insulation in a three-layer construction (100% recycled polyester 140 g/m²/140 g/m²/40 g/m²) Base: Stratus recycled synthetic sheet insulation in a double-layer blanket construction (100% recycled polyester 60 g/m²/60 g/m²) Internal TILT Scrim technology on the top to reduce radiant heat loss Triple-layer accordion blanket construction on the top for improved loft and warmth Elasticized internal quilting to draw insulation toward the user and eliminate cold spots Offset localized quilting to reduce cold transmission Low-volume hood for better heat retention Adjustable and fitted neck baffle design to reduce heat loss YKK 3/4 length main zip with synthetic insulating zip baffle to trap heat YKK anti-snag zipper insert and internal anti-snag zipper guard Compression sack included Shell: 100% recycled polyester. Lining: 100% recycled polyester Tapered mummy shape Rab sleep limit: -10°C Weight: 1140 g Rab Solar Ultra 2 - Sleeping bag - 0