2025 SPARCO NEW S-PARK MARTINI RACING SNEAKERS and as of my last update in January 2022 This is due to the

This is due to the revolutionary QRT manufacturing process which allows a seat to be at carbon fiber weight but at fiber glass money

The cooling inserts are charged by soaking them in water then and placing in a freezer for a minimum of an hour (overnight is preferred if time allows)

Rim Diameter - 28 x 37mm

Diameter 350mm

2025 SPARCO NEW S-PARK MARTINI RACING SNEAKERS and as of my last update in January 2022 This is due to theCertification: Running style work sneakers compliant to EN ISO 20347: 2022+A1: 2024 01 SR FO HRO Sizes: 36 48 Upper Super light weight mesh seamless Lining Breathable micro perforated 3D fabric Removable insole Antistatic PU low density with ergonomic thermoforming Anti slip anti static sole Super comfortable EVA mid sole, high energy absorption and FO nitrile rubber thread.