Castelli Pro Skully Thermal Light Black

This Castelli helmet liner in black is designed for warmth. It uses Thermoflex fabric that's surprisingly warm and has excellent moisture-wicking ability. The raw-cut edge ensures it won't interfere with helmet straps or the cage, and it minimizes bulk under your helmet.

To use this helmet liner, simply put it on your head before wearing your helmet. It fits snugly and won't cause any discomfort. When it comes to maintenance, you can machine wash it in cold water with a mild detergent. Don't use bleach or fabric softeners as they may damage the fabric. After washing, let it air dry. Be careful not to wring it out to avoid distorting the shape. Also, make sure to check your helmet and the liner regularly for any signs of wear and tear.