Yoko is a Finnish manufacturer of skis and sports clothing. Their Finnish-made kickwax free Optigrip cross country skis in particular have been a great success: they offer great grip in varying conditions without the need for alchemy-like experiments with dozens of waxes.Yoko is a Finnish manufacturer of skis and sports clothing. Their Finnish-made kickwax free Optigrip cross country skis in particular have been a great success: they offer great grip in varying conditions without the need for alchemy-like experiments with dozens of waxes.