Thermic Heated Ski Socks Heat Fusion Uni + S-Pack 1400B Bundle Size:XLarge (45-47) so that different material strengths

so that different material strengths can be used in different areas

is heavily reduced

over-molded case

but without the pain and suffering of getting on your stiff full compression sock

Thermic Heated Ski Socks Heat Fusion Uni + S-Pack 1400B Bundle Size:XLarge (45-47) so that different material strengthsEliminate the "frozen toe" factor with the Powersocks Heat Fusion Uni Set, a high performance layering essential designed for the demands of dawn to dusk backcountry missions. This system integrates Heat Fusion technology for even, 360 degree warmth around the toes, paired with a breathable, micro channel technical knit that aggressively wicks moisture to keep you dry during high output skin tracks. The included Bluetooth enabled S Pack 1400B