Reactor Lightweight Liner Tshirt Merino Wool is at home

Merino Wool is at home on the trail

The hybrid caruba/poplar wood core is not only light but also very resilient

it offers a perfect balance of flexibility and support for an enjoyable BC experience

form-fitting Merino Wool all around

effectively repels water

Reactor Lightweight Liner Tshirt Merino Wool is at homeOptimized 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 fibers 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 odor control, its quick drying,