Sea to Summit Comfort Blend Sleeping Bag Liner

The Sea to Summit Comfort Blend Sleeping Bag Liner is a 290 g rectangular liner in a soft TENCEL Lyocell/polyester stretch-knit blend, treated with HeiQ odour control to stay fresher across multi-day use between washes. It's available with or without an integrated pillow sleeve, letting you choose based on whether you're already carrying a separate camp pillow. The rectangular shape gives more room to move than a fitted mummy liner, which suits hikers who find mummy cuts restrictive, though it doesn't seal around the feet or shoulders the way a mummy shape does. As a liner rather than an insulated bag, its 290 g contributes hygiene, comfort and a small amount of added warmth, not meaningful cold-weather insulation on its own.