Pretty well lines up with finishers in LD rallies. Not the same per cents as what is sold though.
Heated Gear Brands
Widder is still being used quite a bit considering they're been out of business for awhile now. If you need parts, etc. the Ironbutt Assn., can hok you up, they bought Pat Widder's inventory.
What parts stay the warmest?
Jackets and gloves. Keeping the core and fingers warm.