Swix Top Speed Black (TSB) 180g waxes are gliders for competition that work exceptionally well on warm wet dirty snow as well as cold dry friction conditions. The TSB line has excellent durability thanks to a solid black lubricant that reduces friction. TSB can be used as a race wax alone but is often used as a base for top coats. Replaces HFBWX (Black Wolf) race wax. This wax line is part of Swix's fluoro-free racing glide wax system and is based on new speed additives that conform to their global sustainability strategy. Environmentally friendly and fit for racing and performance-oriented training. They follow the traditional color and number logic for wax selection. TS06B Blue 180g -6C to -12C (21F to 10F): The TS06B is the second hardest wax in the TSB line and is an excellent choice in typical winter conditions. Recommended iron temperature setting of 145C (293F).