This Premium Waterproof Lightweight Sleeping Bag is made from a durable 210T polyester outer shell, with an ultra-warm 250GSM hollow fibre filling. Both the compression bag and sleeping bags material are water-resistant, perfect for use from spring to early winter period. In the event of extreme conditions, our sleeping bag has a certified extreme temperature of -11C and a sleeping comfort temperature of 8C. Packed with practicality in the form of a spacious envelope design, adjustable drawstring hood, double-sided zip and easy-carry compression bag, this sleeping bag is ideal for camping, hiking, festivals and sleepovers.