Created for performance on the road and track - the Alpinestars SMX-6 motorcycle boots are CE Certified with a high-tech microfibre upper construction that is ultra-lightweight and flexible but highly durable. Double-injected PU shields at the shin, ankle, calf, tow and heels provide exceptional impact protection. A double-injected panel connected to the heel counter is hidden beneath the outer shell and runs up the outer ankle. An interchangeable bi-injected PU toe slider with a snap-in assembly is another handy addition. An exclusive compound rubber sole featuring structured shank reinforcement gives added support to the arch area. A quick-drying polyamide lining is laminated with open-cell foam and high-density contoured padding for outstanding shock absorption. The wide opening aperture with innovative medial side entry allows easy entry and exit with the elastically mounted zip and an extra wide Velcro flap for the perfect personalised fit. An MTP mesh liner keeps you fresh.