Part of Sparco's RW-10 range of racing underwear, these long johns are made from the lightest, most flame retardant material, with extra-flat seams to eliminate pressure points and reduce fatigue. The material has Sparco's X-Cool silver treatment that provides a feeling of freshness on the skin. Ultra light without compromising protection Ultra flat seams for a superb level of comfort Printed logos to keep weight to a minimum X-Cool silver treatment provides a cool feeling and is antibacterial Sparco's RW-10 range of underwear has been designed to exceed the strict FIA 8856-2018 homologation for greater protection against heat and flames and also to meet the demands of high-level racing teams such as McLaren Formula 1. Sizes: XS - 70-77cm waist S/ M - 78-93cm waist L/XL - 94-109cm waist XXL - 110-121cm waist FIA Approved 8856-2024