Seirus Heatwave Skull Liner Color:Black 1 Sock uses polyester and

1 Sock uses polyester and polyamid to create a sock that moves moisture quickly to keep your feet dry

Trimmed with corduroy this has all the pockets

powder (other than a big dump)

which helps with edge hold and speed

and gravel riders

Seirus Heatwave Skull Liner Color:Black 1 Sock uses polyester andThe Seirus Heatwave Skull Liner uses Seirus dual stage heating system to maximize the amount of warmth a liner can generate. The reflective poly nylon lining helps you retain up to 20% more body heat while kinetic energy from the wicking process is harnessed to provide an additional 4 5 degree increase in warmth. On those days when other liners arent enough, slip the Seirus Heatwave Skull Liner on under your helmet and ride through the frigid temps in