Fly Racing Maverik Adult MX Boots - F4 White with MX Sole - size 13 3D shin protection - pre-shaped molded plastic adds impact protection and comfort Adjustable quick lock buckles - secure buckles with a solid locked in feel and an open design keeps dirt from clogging the function 3D molded shift protection - this plastic molded panel saves your boot from premature wear. Don't miss a shift with the added grooves and texture to aid in grabbing the shift lever Elastic gaiter - provides a comfortable rim around your calf while sealing the opening from debris