This fly mask features a soft, stretchy, Lycra for unbeatable comfort! It has mesh eyes for maximum visibility and protection. Durable stitching around the edges and soft fabric make this a great mask for comfort and fit to keep out the tiniest of pesky flying, biting insects. Mesh does not impede visibility. Easily slips on, no zipper or velcro to mess with. And it has a loop at the top to attach to your halter.