The synthetic fill is super-lightweight and delivers warmth without adding bulk. It's shielded by a ripstop nylon outer that protects your bag from nicks and scratches for long-lasting performance.  Rectangle-shaped bag Brushed polyester lining Lightweight synthetic insulation Nylon Ripstop outer 3 season Left-sided zip Inner pocket Season rating: 3 Comfort rating: 1°C Limit rating: -5°C Extreme rating: -22°C Dimensions: 220x80cm Weight: 1.93kg