We have finicky Arabians and the geldings especially refuse to keep a fly mask on, but will tolerate -- and even like -- wearing this one. Soft lycra fabric doesn't make them itch like other masks do and the eye netting enables them to see better than other masks. We are able to use these masks underneath a bridle to protect our horses from gnats while riding. I made a 2nd order of these masks for the rest of our herd. Very, very pleased. The fabric is not as durable as some fly masks, but they have greater versatility and the horses much prefer wearing these.