The EOS Sleeping Bag Series from FOX is available in 3 sizes (1, 2 and 3) to match the three sizes of the EOS bedchair. These sleeping bags are of excellent quality for a very good cost price. 2-3 Season and therefore perfect for late spring, summer and early fall. Off-set stitched panels for optimal heat retention. Extra large, heavy duty crash zips. Adjustable fastening strap. Polyester lining in center section and fleece lining in head and foot. Pillow retainer. Extra large internal fleece anti draft flaps to keep out cold and warmth in. Elastic flaps for bedchairs with single legs on the head and foot end such as the Flatliner 6 Leg. Supplied in compression bag.