Simpson Memory Fit Fire Resistant Racing Underpants - SFI 3.3 Color_Silver/Black/White they’re ideal for long sessions

they’re ideal for long sessions

and an adjustable wrist closure

Connect to a NACA duct for pulling in outside air

Motor Vehicle Seat Belt Anchorages-Performance Requirements

Ideal for both vehicles and trailers

Simpson Memory Fit Fire Resistant Racing Underpants - SFI 3.3 Color_Silver/Black/White they’re ideal for long sessionsSimpson's Memory Fit line of fire resistant racing underwear features a unique fabric that becomes softer with age, guaranteeing a fit that is made just for you! The lightweight, anti microbial treated fabric bends, moves, and stretches with you, reducing bunching and driver discomfort. Athletic cut, and contrasting stitching gives a stylish, modern look.