These Goggles come with a clear lens and a bonus lens-please specify in the notes section if you want the 2nd lens to be clear, smoke, red mirror or blue mirror. The Notes Section is during your checkout. Rex Specs are protective eyewear for the active dog. They are stable and secure while still allowing for full jaw motion and field of view. Rex Specs protect your dogs eyes from debris, environmental hazards, and sun. All lenses are UVA/UVB protective and assist in the treatment of canine eye conditions such as pannus (Chronic Superficial Keratitis). Rex Specs have been designed and tested for the working dog be insure they meet the needs of any dog and any adventure. Rex Specs dog goggles come with 2 lenses All lenses are interchangeable, spherical, and rated UV400 to provide protection from UVA/UVB rays. Dynamic strap system enables full jaw movement GOGGLE SIZE HEAD CIRCUMFERENCE MUZZLE CIRCUMFERENCE X-Small Less than 10.5 in Less than 6 in Small 10.5 in - 12 in 6 in - 8 in Medium 12 in - 14 in 8 in - 9in Large 14 in - 17.5 in 9 in - 11.5 in X-Large Greater than 17.5 in Greater than 11.5 in Small Wide* 12 in - 15 in 6 in - 9 in
