Opti-Force® Fly Mask with Insect Shield®The Opti Force Fly Mask with Insect Shield delivers advanced protection against flies, gnats, and other biting insects that compromise your horse's comfort and performance. Engineered with Insect Shield technology, this mask provides long lasting insect repellency that doesn't wash away with sweat or rain. The breathable mesh design ensures optimal visibility and airflow while the secure fit prevents slipping during work or turnout. Ideal for horses