Description
When you’re pushing limits on the track, every layer of protection matters—especially the ones closest to your skin. K1 Racegear’s Underpants Flex deliver fire-retardant coverage where it counts, engineered to keep you safe during high-intensity racing without sacrificing comfort or mobility. Built to SFI 3.3/5 standards, these are the foundational piece of any serious racing suit system.
- SFI 3.3/5 rated
- Fire-retardant blend
- Flex construction
- Black colorway
- Large size
- Sold individually
- Underwear bottom
