ALPINESTARS SMX+ Boots - Black - US 5 / EU 38 2221019-10-38 Distinction T-Shirt Extensions can be snapped together

Extensions can be snapped together to create longer lengths

Thermowelded flex grooves to control the flexion and flexibility of the shoe

Heat mapping tests have resulted in specifically designed ducting which produces a positive flow into the helmet over and around the rider’s head

Adds just the right sound to your Wing

thanks to a full circumference waist zipper

ALPINESTARS SMX+ Boots - Black - US 5 / EU 38 2221019-10-38 Distinction T-Shirt Extensions can be snapped togetherAdvanced microfiber upper construction for lightweight high performance protection and superb levels of flexibility Front flex area is constructed with a soft microfiber for improving abrasion resistance and natural forwards and backwards movement Flexible accordion microfiber on Achilles gives enhanced natural movement Outside entry exit has stretchable accordion panel for a close fit and ease of entry and removal. Contoured high modulus shin plate