Alpinestars ZX Evo v2 Fire Resistant Racing Undershirt - FIA 8856-2018 / SFI 3.3 Size:Medium/Large Designed to be compatible with

Designed to be compatible with all HNR-Systems

it boasts a 32 channel capacity and operates on 400-480MHz frequencies

- Ribbed collar retains shape and provides stretch

we use individual straps with quick release clips

Available in white or black

Alpinestars ZX Evo v2 Fire Resistant Racing Undershirt - FIA 8856-2018 / SFI 3.3 Size:Medium/Large Designed to be compatible withDesigned for Formula 1 racing, the Alpinestars ZX Evo v2 line of fire retardent underwear is extremely light and thin, without sacrificing comfort or protection. Through the use Alpinestars' proprietary Lenzing FR fabric, the ZX Series uses a revolutionary tubular knit construction, making the Alpinestars ZX Evo Racing Undershirt nearly seamless. The comfortable, form fitting design features an elongated rear to help improve fit in the seated