Our fly masks are made of textaline material. We use the gray color only as they have better visibility. They are lined with polar fleece on the edges to reduce rubbing. Made in the U.S.A. by Mini Express, our sewer, Tina Marshall. HINT: Apply fly spray on the fleece before putting on as it helps keep the flies away. Also, before washing, take a wire dog brush to remove any hay/debris from the velcro. We offer 3 sizes....small.which fits a weanling of about 4 to 5 months old up to a year, medium fits about 28" to 31" tall mini, and large fits over 32" up to 36" mini.