Constructed from lightweight 100% waterproof yet breathable materials with taped seams and elasticized waist

Other design features include viscoelastic protective armor on the knuckles and reflective panels

thanks to their lightweight chassis

the same crown pad can be used within sizes XS and S

tech zx boxer 1 YGroup_6506524 Constructed from lightweight 100% waterproofAlpinestars TECH ZX Series BOXERS are constructed with LENZING FR, an innovative, sustainably produced viscose fiber that provides exceptional flame resistance and protection against heat transfer. This Formula 1 derived underwear is extremely lightweight and thin, and designed to be incredibly soft to the touch, offering greatly enhanced comfort when wearing beneath mandatory underwear layers. Certified to FIA 8856 2018 homologation standard for