Off-Set Double Layer Construction - Stitching is offset so cold spots don't form at the stitch lines. The layers are separated using an interlining layer to stop the fill snagging or lumping in the bag Poly Cotton 25-30% Cotton / 70-75% Polyester 150g/m - A comfortable and durable fabric that is soft to touch, 100% Printed Cotton Flannel 230g/m2 - A comfortable and durable fabric that feels soft to the touch Single Hole Siliconised Hollow Fibre Insulation - Siliconised fibres reduce matting of filling, increasing durability and maximising the lofting potential for extra warmth. Retains loft in damp conditions Flat Head Rest (No Drawcord Closure for Safety) - An extended area is provided around the head for extra comfort. Insulated Zip Baffle helps to retain body heat within the sleeping bag whilst keeping out colder air. The woven zip puller allows quick and easy operation of the zip Two Way X-Lock Zip - This versatile zip mechanism can seal in warmth or provide ventilation as required. The X-Lock design holds the zip in place but will move under force - an ideal feature should you need to leave the sleeping bag in a hurry. Pillow Case Included in Outer Shell Fabric - An additional 50grms of insulation is included around the opening to provide added comfort and warmth. Internal Pocket conveniently placed to provides storage for phones, MP3 players and other small essentials Square Shape Carry Bag - Colour matched to the sleeping bag New Quilted Stitching - Stylish stitching that holds the insulating fibre in place for an even distribution across the body and providing warmth and comfort