Getting the right fit is essential for comfort and performance. You have heard terms like 'custom fit' but what do they mean? Most manufacturers define custom fit as a shoe with a small amount of moldability in the upper. Some also have a very small degree of heat moldability in the base. When we say this shoe is heat moldable, we really mean it. You can mold the sub-9 in any home oven and the amount of moldability is outrageous. If a shoe doesn't fit properly, you can't train or race at your optimum. The sub-9 has a two piece tongue that opens the shoe right up making it very easy for you to slip your foot in for a fast transition. Add to that, Bonts' patent pending built in shoe horn lets you put your shoe on with just one finger. This shoe also has a shoe protector for the heel which protects the shoe during the transition. The Sub-9 is available in Silver Shiny Microfiber.