Sea to Summit Reactor Lightweight Sleeping Bag Liner Model:Regular this tool eliminates unnecessary weight

this tool eliminates unnecessary weight while maintaining essential features and durability

Internal hydration sleeve with hose port in backpanel

protecting against rain and condensation

this fully machined Spectrum reel is modelled after the popular 4200 series

Sea to Summit Reactor Lightweight Sleeping Bag Liner Model:Regular this tool eliminates unnecessary weightAdd warmth without adding weight The Sea to Summit Reactor Lightweight Sleeping Bag Liner is designed to boost warmth with minimal bulk for ultralight adventures. Using advanced Thermolite Pro fabric with hollow core fibres and infrared absorbing ceramic pigments, it helps trap body heat and add up to 4 C of warmth to a sleep system. Stretch knit construction and articulated arm openings allow natural movement throughout the night, while the ergonomic