Equivizor for horses and ponies

Arso Equivizor mask with 90% UV protection and headband

Size Guide
Arso Mask Size

UV protection mask for horses with uveitis

Like all our products, it provides excellent light blocking and UV protection (90%) and is the perfect complement to the treatment prescribed by veterinarians for uveitis. Featuring a semi-rigid hoop that keeps the fabric away from the horse's eye, it can be worn permanently and safely by any horse requiring special eye protection (uveitis, ulcer, cataract, etc.), both in the pasture and in the stall.

It can also be used for outdoor work or flatwork. Given its opacity, we do not recommend using it for jumping; for these disciplines, we recommend Evysor goggles.

Specific features of the mask:

  • Semi-rigid hoop
  • Thick neoprene interior to maintain the shape of the cap,
  • Velcro closure at the underbust,
  • Second closure system with two straps, one passing behind the ears and the other under the throat. The strap passing under the throat has a sleeve to ensure maximum comfort for the horse.

This mask is particularly effective if your horse suffers from uveitis, cataracts, conjunctivitis, ulcers, or any other eye condition or fragility.

To find the right size, refer to the size chart.
If you make a mistake, we’ll process returns and reshipments as quickly as possible—simply return the product in perfect condition, within 14 days.

This mask is recommended or prescribed by equine veterinarians to accompany treatment for uveitis, cataracts, ulcers, or any other eye condition and/or fragility.

Made in Australia (materials and manufacturing). Sizes: XS (mini) - S (Pony) - M (cob) – L (full) - XL (Full)


Please note:

If you have taken out insurance covering your horse's veterinary expenses, the purchase of eye protection required in the event of an accident or the treatment of an ophthalmic condition may be covered in whole or in part by your insurance company. If this is the case, and subject to its terms and conditions and the policy taken out, it will require the products to be prescribed by your veterinarian on the prescription they give you.

Horses are not designed to wear masks! Make sure at least once a day that the mask has not moved and that your horse is comfortable wearing it. We take the utmost care in manufacturing our products and selecting materials, but every horse is different and it is your responsibility to check that the equipment you have chosen (model + size) provides the necessary protection for your horse's eyes.

Customer reviews
4.6 Based on 44 reviews
5 ★
68% 
30
4 ★
23% 
10
3 ★
7% 
3
2 ★
2% 
1
1 ★
0% 
0
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Filter Reviews
    AG
    November 8, 2024
    Aurélie G.
    France France

    Mask review

    I just received the mask for my horse, I don't have much perspective on the mask's lifespan... The mask is thick with several attachment points, perfect for my horse in the pasture. I chose size L for a horse with a build equivalent to a French saddle horse.

    EK
    August 16, 2024
    Eva K.
    France France

    top

    Super effective, I recommend it!

    M
    July 25, 2024
    MARJO
    France France

    ARSO mask with ears

    This is a great product—my donkey hasn’t had a recurrence of uveitis since I started using it. For a medium-sized donkey, I recommend the “ COB ” size with the ears cut off; it fits very securely. I had ordered the “pony” size, but I found it a bit tight around the eyes—a little too short (the ears push the mask up). However, customer service needs improvement. I had to wait a month instead of 4–5 days, without knowing exactly when I would receive it, right in the middle of a uveitis flare-up. It’s a shame, because the product descriptions are very helpful,

    DP
    July 6, 2024
    Duhalde P.
    France France

    not very effective

    My horse developed uveitis, which was treated, so I bought two masks to protect him in the field (to alternate them while washing them so that his eyes are always protected). The masks are sturdy but not very effective for my horse, as his uveitis quickly returned. So we put him back in the stall for treatment and are trying goggles while he is under observation.

    YK
    May 28, 2024
    Yves K.
    France France

    UV protection mask

    Effective product, so 5 stars for this criterion. The only criticism is that it has a fairly short lifespan. This is the third one I've bought between 2021 and 2024. Even though my mare wears it 24 hours a day, it has a limited lifespan. Hence only 3 stars for durability.

    What size should I choose for my Equidiva mask/hat?

    All measurements are approximate and are provided for informational purposes only.

    Size guide - Premium or Helios mask

    Using a tape measure (or a piece of string that you will measure afterwards), measure around your horse's head as shown in the photo:


    Mask size Head circumference
    XS - Shetland* 84 cm
    S - Pony* 90 cm
    M - Cob* 94 cm
    L - Full* 100 cm
    XL - XFull* 110 cm
    If your horse's head measurement falls between two sizes, we recommend choosing the larger of the two.



    Size guide - Equivizor masks (Lightweight, Arso, Convalescence models)

    For these masks, the main measurement is the width of your horse's forehead. To do this, you need to add together three measurements:

    1. Start at the outer corner of one eye and measure upwards at a slight angle to the middle of the forehead (measurement A).
    2. continue along the front of your horse(measurement B),
    3. Finish the measurement by directing the line slightly downward to the outer corner of the other eye (measurement C). This way, you will measure the widest part of your horse's forehead.

    Add these 3 measurements (A+B+C) to obtain the size of your horse's forehead.

    IMPORTANT: Do not measure directly from one eye to the other, as this will likely result in an inaccurate measurement.

    equivizor mask measurements

    Mask size Forehead size
    XS - Shetland* 7.5–8.7 inches
    S - Pony* 8.7–11.4 inches
    M - Cob* 11.5–13.5 inches
    L - Full* 13-14 inches
    XL - XFull* 15-17 inches


    Size guide - Rambo mask

    Take these 3 steps:


    Size A B C
    XS (large Shetland) 60 cm 84 cm 20 cm
    S (pony) 70 cm 96 cm 9.5 inches
    M (cob) 70 cm 96 cm 9.25 inches
    L (full) 75 cm 105 cm 27 cm

    If your horse is between sizes, we recommend choosing the smaller size.


    Size guide - Equivet mask

    Measure the distance between the center of the horse's two eyes:


    Mask size Distance between the eyes
    S - Pony* 18 cm
    M - Cob* 21 cm
    L - Full* 9.5 inches
    XL - XFull* 26 cm


    Size guide - eVysor glasses

    The eVysor mask is available in one size. It is suitable for horses in the "cob"* or "full"* size ranges. It may also fit large ponies (D-class ponies).
    evysor measurement

    * Vocabulary Notes
    XS = generally a small-headed pony
    S = generally a pony / some horse foals
    COB : generally a small horse / compact head
    FULL : generally a standard-sized horse
    XFULL = generally a large-headed horse or a small draft horse

    Did you make a mistake? Exchanges are always possible, and we'll process them as quickly as possible, provided you notify us within 14 days.
    > See the return policy