Sea to Summit Reactor Fleeceweight Liner

The Reactor Fleeceweight enhances a sleep system’s warmth using Thermolite fibers and allows for easy movement with stretch-knit fabric.

• The description claims the product boosts sleep system warmth by trapping body heat.
• The description claims the product allows for unrestricted movement.
• The description claims the product integrates with Sea to Summit sleeping bags via snap connectors.