Lake MX 145 Mountain Shoes. Get your CX or Mountain Bike fix in the dead of winter without your dogs howling in the cold. Lake's new MX 145 Mountain Bike shoe is the answer to cold weather trail assaults in conditions that are wet, windy, or blustery but cold around 30 45 degrees cold. They feature super durable synthetic and waxed canvas uppers and a double boa dial fit setup ensures that your foot stays exactly where you want it in the shoe. MX 145s also feature minimal lugs for a little added traction when walking in wet weather.