The exclusive design of these G-FORCE GF505 racing pants gives the driver breathable comfort with an FR cotton shell and a Coolquilt liner. Coolquilt not only means breathable comfort, but is also lined with a special fire-retardant fabric that wicks moisture away from your body, giving a cooling effect. They also feature Nomex cuffs and thread, a brass zipper with Nomex tape, and a TPP rating of approximately 26. Most of the competition uses a Nomex fleece liner that only offers a TPP of 20, and they charge a lot more for their suits. The styling includes white leg stripes along with contrasting piping. So why pay more for less?