Check the listing for details. Walero Base Layer Top - SFI and FIA. Condition: New. Listed at 209.00 USD. The Walero Base Layer Top is a flame-retardant top that is FIA and SFI approved. It is treated with a cutting-edge antimicrobial, and has active temperature regulation to keep you comfortable when racing. Walero is committed to bringing you the most technologically-advanced range of thermo-regulating base layers available, so that you can stay committed to delivering your best performance on the track without the distraction of being uncomfortable.Flame-retardant underwearFIA 8856-2000 and SFI 3.3 approvedActive temperature regulationTreated with a cutting-edge antimicrobialSuper soft material with flattlock seamsActive temperature control Developed by NASA for off-world applications, Outlast® technology actively regulates your body temperature despite changes in your environment, keeping you cool when the temperature rises or lessening the chill when it falls. This thermo-regulating know-how has been proven to effectively reduce perspiration by up to 33%. Tailored for comfort Walero race underwear has been tailored for a superior fit with flat-lock seams and super-soft fabric to ensure maximum ease of movement and palpable comfort from start to finish. Freshness beyond the finish line Treated with Envirotex, Walero next-to-skin base layers keep you fresher for longer meaning no more smelly kit bags either! This cutting-edge, hospital-grade antimicrobial is 99.999% effective against many common bacteria as well as many fungal spores and viruses, as well as being non-toxic and eco-friendly. Protection when needed Ready to face the unexpected, Walero base layers are quality-assured and have been tested and approved to FIA 8856-2000 and SFI 3.3, which means they are fully flame-retardant and fully approved for racing worldwide. The Protal FR material responsible for the fire protection doesn't wear out or expose your skin to chemical additives, and exceed the test SFI and FIA test criteria.