With the Neutrino 400, dare to go on an adventure. In ultralight mode, this Sleeping bag - 0 from the brand Rab is just waiting for you to explore the peaks. Even in negative temperatures, sleeping in a tent will remain possible thanks to its goose down that retains heat throughout the night. Material: 100% recycled polyamide Lining: 100% recycled polyamide Rab Sleep Limit: -7°C (20°F) ISO EN: Comfort: -1°C (30°F), Limit: -7°C (19°F), Extreme: -25°C (-13°F) Recycled Pertex® Quantum 20D ripstop nylon (38 g/m²) with fluorocarbon-free DWR Lining: 20D recycled nylon (38 g/m²) RDS certified European 800FP goose down with Nikwax fluorocarbon-free hydrophobic finish Chevron baffle design saves weight, reduces down migration, and optimizes core warmth Trapezoidal boxwall construction with differential cut to maximize loft and warmth Adjustable and close-fitting neck baffle design to reduce heat loss YKK 3/4 length main zip with synthetic-filled baffle to trap heat YKK zipped internal pocket Angled foot box for a relaxed sleeping posture YKK anti-snag zip insert and internal anti-snag zip guard Hand-filled in Derbyshire, UK Zipped cotton sack with water-resistant base for home storage Waterproof compression sack included Tapered mummy shape Weight: 775g Rab Neutrino 400 - Sleeping bag - 0