Rex's Grip Waxes is well-known and trusted basic grip wax line that contains classics, which have been in production for over 50 years! Rex Grip Wax Blue is the king of grip waxes! A classic that has been in production for decades, still remaining relevant. In Finland Rex Blue has gained a legendary reputation, just ask any finnish skier! It is used widely as a universal grip wax on cold temperatures. Its grip and glide properties can be adjusted by the thickness of the wax layer. The colder the weather, the thinner the layer.