RAB says about the Solar Ultra 2 Regular

The cutting edge of synthetic sleeping bags, the Solar Ultra combines advanced insulation construction with built in TILT for dramatic heat retention. Durable and dependable, even in the cold and damp, ideal for alpinism, bike and backpacking.Internal TILT Scrim Technology on upper for reduces radiant heat lossTriple layer concertina blanket construction on upper for improved loft and warmthElasticated internal quilting to draw insulation towards user and eliminate cold spotsOffset localised quilting to reduce cold transmision Reduced volume hood for better heat retentionClose fitting adjustable neck baffle design for decreased heat lossYKK 3/4 length main zip with synthetic insulated zip baffle to trap warmthYKK Anti-snag zip insert and anti snag internal zip guardCompression stuffsack includedTapered Mummy Shape

Product specifications

Outer fabric	20d atmos™ recycled nylon ripstop fabric (38gsm) with fluorocarbon free dwr
Insulation	Recycled stratus synthetic sheet insulation in a dual layer blanket construction (100% recycled polyester 60gsm/60gsm)
Liner	Lining: 20d atmos™ recycled polyester ripstop fabric (41gsm) with fluorocarbon free dwr
Temperature rating	Comfort +2°c (women's temp.) - comfort limit -4°c (men's temp.) - extremelimit -21°c
Dimensions	215 x 71 cm
Weight	1,095 kg