5 season sleeping bags are designed for use in cold and extreme conditions and are the warmest sleeping bags you'll find. Of course seasons can be different depending on your destination, so many people judge the performance of their sleeping bag by its comfort temperature. The comfort temperature provides a more of a universal indication of its warmth and suitability for your chosen activity and where you will be using the sleeping bag.
5 season sleeping bags (of 4+season sleeping bags) are perfect for expeditions and generally include features such as insulated baffles, durable water repellent shells and technical insulation that performs well in damp conditions to maintain its insulating properties.
Bought this to use for mountain marathons and lightweight camping trips. Brilliant service, got it despatched within 24 hours of ordering and arrived in time to take to the OMM in Brecon Beacons. A good bag, super-light and just about warm enough for a 3-4 degree overnight stay if you're hardy!
