Seirus Heatwave Skull Liner Color:Black less flexible

less flexible

powder (other than a big dump)

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

with an antimicrobial finish for those adventures that take place across several days

you get stout flex but not over the top stiff

Seirus Heatwave Skull Liner Color:Black less flexibleThe 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