Alpinestars SMX-6 V3 Boot Size:42 For more aggressive applications (think

For more aggressive applications (think super hilly trails or extreme rock crawling)

Shell Fabric: 99% Polyamide

The Disc Brake Conversion Kit comes with all necessary hardware

Not just an EFI tuner

and clever comfort features like the neoprene collar

Alpinestars SMX-6 V3 Boot Size:42 For more aggressive applications (thinkFEATURES Advanced microfiber upper construction for lightweight high performance protection against abrasion and superb levels of flexibility New front flex and back flexion zones are constructed with textile over injected with a soft TPU for enhanced impact abrasion while also promoting a natural forwards and backwards movement Alpinestars unique ankle brace protection system provides a bio mechanical support and protection between the lateral top