Top Speed Turbo (TST) is a racing wax line developed especially for roto wool application, meaning that waxing iron is not needed. TST offers a unique combination of water repellency, dirt repellency, durability, and exceptional hardness. This combination makes TST the fastest and most advanced next-generation Swix racing wax. It can be used as a top coat or base layer under other glide products like TS liquid. The optimal snow condition for TS5 is cold and dry snow with temperature -8°C to -15°C.