Sparco Hydration Pack Auto Racing Shoes One kit is required per

One kit is required per caliper (we suggest doing them both as long as you're doing it)

The QRT-K is FIA approved

84° or 120°

The Sparco Hydration Pack helps you stay hydrated in the race car to combat the negative effects of dehydration

Stilo ST5 FN ZERO Sizing:

Sparco Hydration Pack Auto Racing Shoes One kit is required perSparco Hydration Pack With temperatures that can reach 130o F in the cockpit of a race car, a driver can lose up to 10 pounds of fluid during a three hour race. Dehydration can impair a drivers ability to concentrate and focus during long stints. The Sparco Hydration Pack helps you stay hydrated in the race car to combat the negative effects of dehydration. The Hydration Pack attaches to the back of any Sparco competition seat (and most non Sparco