Description

This Sea to Summit Thermolite Reactor Extreme sleeping bag liner adds a full 25°F of warmth and extends the life of your sleeping bag.

Features

• Constructed of insulating Thermolite® fabric, a hollow-core, breathable fiber that provides extraordinary warmth for its weight
• Adds up to 25°F of warmth to a sleeping bag; can also be used as a summer ultralight sleeping bag
• Liner helps keep the inside of your bag clean, saving it from the wear and tear of washings
• Drawcord hood with mini cordlock cinches around face to hold warmth in
• Mummy shaped liner features a 3D footbox providing plenty of room for feet
• Comes with a lightweight Ultra-Sil™ stuff sack