A good liner does two jobs at once: it adds warmth on cold nights and keeps your sleeping bag clean so it lasts longer, and the Highlander Fleece Mummy Sleeping Bag Liner does both. Made from soft polyester fleece in a mummy shape, it slides inside your sleeping bag to add a cosy, insulating inner layer right against the skin. An integrated hood with drawcord traps warmth around the head and shoulders, while two-way locking zips let you climb in easily and vent heat without fully opening the liner. It works as a hygienic barrier that keeps dirt and sweat out of your main bag, reducing how often you need to wash it, and in milder conditions it can be used on its own as a light layer. Machine washable, quick drying and supplied with a stuff sack, it packs down small at 700g. Finished in black.