Extreme Rating - Can be used for extreme temperature of -30°C. This is a survival temperature only. The bag is not intended for regular use at this temperature 3/4 Season - Cold nights, early Winter backpacking trips and festivals for extra warmth Microfibre Insulation - Provides excellent heat retention & comfort, a synthetic alternative to down Regular length - it measures 200cm. Max user height 180cm / 5'9" Long length - it measures 215cm. Max user height 195cm / 6'4" Perfect for colder conditions, the Microlite 1400 Sleeping bag is a great season 3 -4 sleeping bag. Durable, super cosy and full of great features, the Microlite 1400 is perfect for sleeping comfortably under the stars. Season Rating - 3/4, perfect for use in cold to very cold temperatures Comfort Temperature - -4C – 1C Extreme Rating - This bag can be used in temperatures as low as -21C. This is a survival temperature only.The bag is not intended for regular use at this temperature Filling - Microfibre Insulation Zip - The zip system has a two-way closure system with storm flap and zip guard to prevent snagging Inner Pocket - Allows you to keep valuables safely tucked away while camping Shape - Mummy shaped for increased warmth Fabric - 100% Nylon Ripstop shell with a soft polyester lining Lightweight Hood - The lightweight hood has a multi-cord closure system Weight - 1.9kg Packed Diameter - 20cm X 44cm Double It - You can zip two of these bags together to create a double sleeping bag Ref: 023165