Metabug FLY DEFENCE for horses. This fly mask features close contact construction to keep insects out. Climate control fabrics, a 3D mask and protective freedom fit ears all help the horse to feel comfortable. Anti-sun burn and bleach fabrics keep the horse safe from UV damage, the mesh nose blocks 60+% UV rays making this mask particularly useful for horses with sensitive skin. *Blocks 76% UV (average). Minimum rating 60+% for eye (and nose) mesh. Poll and nose fabric 90%, ears 70%. Effectiveness may reduce over time. Tested under BS EN 13758-1:2002+A1:2006