Reactor Midweight Sleeping Bag Liner Colour:Black making it the lightest option

making it the lightest option in the ActiveTemp™ glove collection

while the easy-rinse surface makes cleanup effortless wherever you are

Engineered with movement-mirroring stretch for a natural

and an optimized lug pattern inspired by a goat’s hoof for superior trail control

Reactor Midweight Sleeping Bag Liner Colour:Black making it the lightest optionA high performance sleeping bag liner that meaningfully extends your sleep system's warmth and lifespan, the Sea to Summit Reactor Midweight uses Thermolite Pro fabric with infrared absorbing ceramic pigments and hollow core fibres to trap and reflect body heat adding up to 6C to your sleep system without meaningful bulk. Stretch knit fabric and shaped arm openings allow unrestricted movement throughout the night, and a fitted hood delivers targeted