A polycotton outer and a soft flannel inner means youll feel like youre all wrapped up in a duvet at home temperature rating of a 23 season sleeping bag making it ideal for springsummerautumn built in pillow in the hood complete that home from home feeling dimensions 220 x 100cm temperature range 15c to 11c weight 3 3kg carry bag included added insulation where you need it most with dual fill top and bottom