The Summit 300 Sleeping Bag is a season 3/4 piece, ideal for wintry campouts keeping you toasty and comfortable. With a two-way zip, this mummy shaped bag is warm and great for a snug night under the stars. Extreme Rating - Can be used for extreme temperature of -18°C. This is a survival temperature only. The bag is not intended for regular use at this temperature Comfort Temperature - 4°C to -2°C. The ‘comfort’ temperature is the minimum temperature that a sleeping bag is designed for Long length - it measures 215cm. Max user height 195cm / 6 4" Weight - 1.7kg Packed Dimensions - 23cm x 41cm Great For Wintry Campouts - Perfect for colder weather camping trips in Spring through to Autumn.