They 're easy to remove , leave no residue on the skis and easily fold up to put in your pack or jacket .
The skins are smooth in one direction to allow skiers to slide forward but rough in the other direction to prevent them from sliding backward .
skiers 're easy to remove , leave no residue on the skis and easily fold up to put in your pack or jacket .
The skins are smooth in one direction to allow skiers to slide forward but rough in the other direction to prevent them from sliding backward .