The closest you can get to high quality down performance with all the advantages of a synthetic filling. The filling, evolutionary design & quality make this a unique range of fibre-filled bags. These bags are designed for maximum insulation & comfort, with a minimum of weight & pack size. The Performance -5°C is a super value 3-season bag for hikers & trekkers who want a high performance bag for normal 3-season use. It has the special “designed from the inside” neck baffle.