Reactor Lightweight LinerOptimised for minimal weight and maximum warmth, the Reactor Lightweight enhances sleep system performance with advanced Thermolite Pro fabric, which uses infrared absorbing ceramic pigments and hollow core fibres to trap body heat. Adding up to 4C 7F of warmth with minimal bulk, its ideal for ultralight expeditions. Stretch knit fabric and articulated arm openings ensure unrestricted mobility. Treated with HeiQ Fresh odour control, its quick drying,

but with a noticeable toe spring

Foot Protection: High

Nose wipe on thumb

So Much Room: Bring your packs inside

Setting off on the next stage of your hike with friends and simply enjoying the great outdoors is your idea of the perfect hiking trip

Shell: 100% Acrylic

WEIGHT: 395g

HeiQ odour control technology helps keep the liner fresh even after extended use

Design elements like the attached clean side cap and grippy-but-not-sticky filter housing eliminate frustrations like leaking water in the pack

Weight:305g

an Air-Active softstep footbed to wick away unwanted moisture

and key clip help you stay safe and prepared on the trail