The Contour range is a traditional rectangular range of sleeping bags with three different insulation weights of Isofill filling for 2 to 3 season usage. Excellent for general family use and nicely colour coded to match all Outwell tents (and most other brands as well). These bags feature a new 'two separate zip system' which enables a LH and RH bag to be zipped together while still providing optimal foot air circulation (gets rid of that cheesy smell) as well as the possibility of using the bag as a duvet. The bags also have built-in pillows for comfort which can be zipped off for use as a cushion. The filling throughout the Contour 2300 is 1550g Isofill hollow fibre for maximum warmth along with a soft polycotton lining, brushed flannel pillow area for that luxury feel and a soft but durable 230T Polyester Microfibre outer shell. Each bag in the range has a two-layer off-set construction to reduce cold spots and provide good temperature ratings. Other details include, full length zip baffles, anti-snag zip guard, inside mesh pocket and square pack sack for storage.