Great to keep your noggin warm in the cold months. This ski cap has the XM Radio logo stiched onto the front. This ski cap is tight knit and machine washable. Product Images: Available Documentation: In order to view our radio hardware manuals online, you'll need to have Adobe's Acrobat Reader installed on your computer. If you don't yet have Acrobat Reader, please visit Adobe's web site to download the reader free of charge. none