Sea to Summit Reactor Lightweight Liner Travel pillow

Insulated sleeping bag liner adds extra warmth and personal hygiene to each sleeping bag Lightweight and insulating, Thermolite Pro technology with hollow core fibers and infrared absorbing pigments improves heat with minimal pack size and adds down to -13.9 degrees F Freedom of movement with stretch knit fabric and molded arm openings for unrestricted movement and natural comfort throughout sleep Technical shape and fitted hood provide optimal warmth and comfort without adding weight or bulk; fits into any sleeping bag thanks to stretch fabric Lightweight Long measures 78 x 31.5 inches and weighs 9 ounces; packs to 7.1 x 3.9 x 3.9 inches with a pack weight of 9.5 ounces

The Sea to Summit Reactor Lightweight Liner is an ultralight sleeping bag liner designed to boost warmth without adding bulk. Using advanced Thermolite® Pro fabric with hollow-core fibres and infrared-absorbing ceramic pigments, it traps body heat to add up to 4 °C | 7 °F of extra warmth. Stretch-knit fabric and articulated arm openings allow unrestricted movement for natural comfort throughout the night. Treated with HeiQ Fresh for odour control and quick drying, it’s machine washable and helps extend your sleeping bag’s lifespan. Perfect for ultralight backpacking, mountaineering, and cold-weather expeditions.