Our helmets are equipped with 2 linings, one for summer and high temperatures and the second for the cold in winter. The winter lining replaces the summer lining and is directly velcroed onto the helmet. Thev helmet straps then slide through loops sewn into the winter lining. Gone are the days of slippery bonnets and exposed ears after just a few kilometres! These 2 linings allow you to ride under perfect conditions all year round. (Available on all models except Messenger in standard version).