wild race 100% cotton ear nets are of a quality to rival all the other top brands. They are hand knitted and come in a variety of colors, and sizes with a Velcro system. "Shiny White" Twisted Binding. As these ear nets are made of cotton and are very delicate. There will not be an unnecessary build-up of heat and they easily fit underneath any type of bridle without causing bulk or pressure points. Ear nets are useful for horses who are sensitive to flies and insects around their ears and heads. Many people find that using an ear net helps with horses who head-shake a little during the summer months due to flies.