Thug Rugs will fit over or under your riding lid, depending on the size of your noggin'.
Wash at 30°C, in clean water, else it'll be durrrty again. 
Dry Flat, or use a fanning boy, which ever you prefer. Just don't tumble dry it. 
Thug Rugs are 30% cotton, 70% polyester, in case you were wondering.
Constructed by the home boy Tolga, the worlds most tolerant man, over in Istanbul, Turkey.