The exclusive design of the G-FORCE Racing Gear GF505 racing suit gives the driver breathable comfort with its 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. Nomex® fleece liners used by the competition do not absorb moisture well and are not as durable. Styling includes white arm and leg stripes along with the standard front billboard with contrasting piping. Built with all the right stuff including Nomex cuffs, brass zipper with Nomex tape, Nomex thread, a cool, comfortable FR Cotton shell and a Coolquilt liner. These features make the GF505 a bargain. The suit has a TPP rating of approximately 30, which under laboratory conditions would help prevent 2nd degree burns for about 15 seconds. Most of the competition uses a Nomex fleece liner that only offers a TPP of 20 and they charge a lot more for their suit.