Ophthalmic masks for horses, ponies, and Shetland ponies with up to 90% UV protection

Perfect complements to horse goggles, our masks can be worn at all times by any horse requiring eye or eyelid protection (uveitis, ulcer, cataract, carcinoma, etc.), both in the field and in the stall. Can be used when working outdoors or on flat ground. Do not use when jumping.

Insect masks with or without headgear, with or without ear covers, providing protection from the sun, wind, dust, and insects that your horse needs.







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 - Poney* 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 - Poney* 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 - Poney* 18 cm
M - Cob* 21 cm
L - Full* 9.5 inches
XL - XFull* 26 cm


Size guide - eVysor glasses

Le masque eVysor est proposé en taille unique. Il convient aux chevaux taille "cob"* ou "full"*. Il va parfois également aux grands poneys (poneys D)
evysor measurement

* Précisions vocabulaire 
XS = généralement poney petite tête 
S = généralement poney / certains poulains de chevaux
COB : généralement petit cheval / tête compacte
FULL : généralement cheval standard
XFULL = généralement cheval grande tête ou petit cheval de trait

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