ALPINESTARS Tech 10 Boots - Blue - US 12 2010020-713-12 Lower Control Arms Back features a removable puck

Back features a removable puck to house the Alpinestars YNS

Thermoformed padded chassis for optimized levels of comfort and close-to-body fit

repeated abrasion resistance and flex support

Inner removable thermal liner for versatility

ALPINESTARS Tech 10 Boots - Blue - US 12 2010020-713-12 Lower Control Arms Back features a removable puckCombines dual front and rear blade connectors Provides a complete and seamless flexion control system, from the foot shell all the way up to the shin plate Engineered to 'float' freely between the lower and upper boot construction Asymmetrical, dual pivot arms on boot frame A unique feature is the ankle control system developed in the outer shell construction, allowing natural ankle movement, vertical compression control and improved impact protection