First Ascent Thermolite Heating Liner
The Thermolite sleeping bag liner is specially designed for extreme environments as it adds up to 15°C of warmth to a sleeping bag.
• Adds up to 15°C warmth to the temperature rating on your sleeping bag
• Most effective on bags with a comfort rating of 0°C or less
• Permanent thermal insulation qualities
• Excellent warmth to weight ratio
• Lightweight and packs down to a small size
• The fibre is breathable and keeps you warm, dry and comfortable
• The mummy sheet has a cowl to match your bag
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