Sea to Summit Reactor Lightweight Liner Mountaineering boots which means materials and components

which means materials and components have been selected that adhere to rigorous third-party environmental and social criteria during production

Removable floating top lid with dual zippered pockets and web attachment points

The TENCEL Lyocell/Polyester blend provides excellent moisture wicking and next-to-skin comfort

Adjustable hems accommodate different hiking footwear

Includes a training guide

Sea to Summit Reactor Lightweight Liner Mountaineering boots which means materials and componentsOptimised 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,