Alpinestars Tech-1 Z v2 Racing Shoes - SFI 3.3 Size:8 The larger 4mm hole is

The larger 4mm hole is used with Bell SRV-style shields

A combination of mesh and lycra fourchettes create a perfect blend of ventilation and flexibility

Some modifying of the internal baffling may be necessary for best results

the R-1046 Truss-style mount offers a proper harness angle and up to 1" of height adjustment - all without restricting rearward seat travel

Heavy duty polyester construction can take a beating

Alpinestars Tech-1 Z v2 Racing Shoes - SFI 3.3 Size:8 The larger 4mm hole isThe latest version of Alpinestars' professional level Tech 1 Z v2 shoe introduces an all new sock construction for the snuggest, most natural fit in a racing shoe. The sock like fit allows for a super lightweight shoe and features a contoured shape that is ergonomically proportioned to the shape of the foot. This creates unsurpassed comfort while seated in the cockpit, reducing driver fatigue. Inside the shoe, an ergonomic footbed maintains a natural