Reactor Extreme Sleeping Bag Liner with Thermolite Pro Fabric

Cold nights get easier when your sleep system has a little more punch. The Reactor Extreme liner uses Thermolite® Pro fabric with infra red-absorbing ceramic pigments, and that's what gives your bag and mat the thermal boost for colder-weather trips.

Soft, wicking stretch-knit fabric sits against you without fighting you. It moves with you, and the mummy shape still fits inside sleeping bags of any shape. Need to get up before dawn? Open the drawcord footbox and shoulder openings for ventilation, or just wear the liner around camp while you sort breakfast.

Features

• Thermal boost that retains heat and warmth, extending the performance of your sleeping bag and sleeping mat in the coldest conditions
• Thermolite® Pro technology combines knitted, hollow-core fibers with infrared-absorbing ceramic pigments that reflect your body's heat back
• Drawcord footbox and shoulder openings open or close for optimal comfort, and the footbox integrates with the Free-Flow Zip system in select Sea to Summit sleeping bags
• HeiQ Fresh odor control technology keeps the liner fresh even after extended use
• Knitted fabric delivers serious stretch and freedom of movement in this mummy-shaped liner
• Sea to Summit Guarantee offered for the Lifetime of this product