Single-Layer Stitch Through Construction - A single layer of insulation sewn between the shell and lining. A stitch through construction keeps the fill evenly distributed and is ideal for lightweight bags Polair Shell - 170T Polyester Cired - A smooth durable polyester that is hard-wearing and washable Single Hole Hollow Fibre Insulation - A synthetic filling that provides insulation and warmth. Retains loft in damp conditions The shaped hood prevents heat loss from the head and a convenient drawcord allows adjustment of the hood for maximum comfort. Two-Way Zip - This versatile zip mechanism can be unzipped from the top (as standard) or bottom to seal in warmth or provide ventilation as required. The zip features self-locking sliders to prevent accidental opening. Hanging Loops at the foot of the bag allow it to be hung up to air, keeping the bag fresh and dry between uses Colour co-ordinated Stuff Sac with Drawcord - Stylish and easy to transport Mummy Shaped Sleeping Bag - The mummy bag features a design that tapers from the head end to the foot end, reducing its volume and surface area, and improving its overall heat retention properties. S-Stitching - Stitching that holds the insulating fibre in place for an even distribution across the body and providing warmth and comfort