One k defender swarovski riding hat the one k defender swarovski riding hat is sure to turn heads with the band of sparkling swarovski jewels across the top of the suede covered helmet the construction of the riding helmet is lightweight and made from polycarbonate and advanced abs composite the shell features an injection moulded shell design with stainless shell mesh centre front and back to allow air to circulate around the head and keep it cool whilst riding the helmet feature a buckle