MX Plus Socks Black/Grey/RedDesigned to be worn with the Alpinestars range of off road boots, the MX Plus Socks feature a single layer construction which incorporates Dryarn fiber, mesh areas and rib construction for high levels of breathability and stretch to provide enhanced rider comfort, on and off the bike. PrimaLoft fiber for compact construction and fast drying Moisture wicking construction throughout Mesh areas for optimized levels of airflow Reinforced padded support