The Lake MXZ120 is their first winter model built on the Comfort Plus Last. This classic hiker styled boot is SPD compatible water resistant warm and breathable. The semi-flexible nylon sole allows for equal comfort on or off the bike and the natural foot shaped toe box provides plenty of space for your favorite winter socks. And to that end Lake recommend ordering 1-1.5 size up from your normal Lake Cycling shoe size for use with thick winter socks.