The Kensington Fly Masks with Removable Nose features double fastening VELCRO® Brand closure with heavy elastic neck strap for safety and double eye darts for maximum room in the eye area. Full coverage of the ears, lined with breathable soft 70 denier nylon with Kensington’s new patented removeable nose piece. This removeable nose piece and the TEXTILENE® material allow for easy cleaning and durabilty. 20% of our net profit on any SmartPink Plaid item is donated to Breast Cancer Research. SmartBlue® Plaid or SmartPink® Plaid. Small fits Large Pony/Yearling, Medium Arab/Cob, Large Standard Horse, and X-Large Warmblood/Small Draft. Masks run slightly large so if you think your horse may be between sizes, please size down.