Manna Pro Opti-Force Fly Mask

Regularly: $24.99

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Buy 2 or more, each at $17.24

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Buy 2 or more, each at $17.27

In Stock. Usually Ships within 24 hours.

Quantity discount will reflect in cart.

Shipping weight = 0.44 lb.

Product Summary:

MannaPro® Opti-Force™ Fly Mask Insect Shield Repellent Gear

The innovative Opti-Force™ Fly Mask provides built-in, invisible, odorless insect protection with Clear View Vision™ mesh, to shield your horse from harmful UV rays. The tear-resistant material is highly durable and lightweight. Insect Shield Repellent has been proven and registered to repel mosquitoes, ticks, ants, flies, chiggers, and midges (no-see-ums).

The EPA requires extensive effectiveness data to prove a products ability to repel insects. Insect Shield technology is EPA-registered to last through 70 launderings.


  • Built-in, invisible, odorless insect protection
  • Repels mosquitoes, ticks, flies, and fleas (including insects that cause Lyme disease and West Nile)
  • Comfortable design keeps the mask off the face and away from the eyes of the horse
  • Designed for a secure fit with strong, clear view vision mesh
  • Protects exposed areas around the mask, including muzzle and ears
  • Equi-Glo Nite Reflector material
  • Two adjustable safety fasteners
Item Specifications:

Horse: Fits horses from 900-1200 lb.
XL: Fits Warmbloods


Active Ingredients:
This item has been treated with permethrin insect repellent. Repels mosquitoes, ticks, fleas, and flies. Dry cleaning removes active ingredient. Do not dry clean. Do not re-treat gear with other permethrin insect-repellent products. Repellency to mosquitoes remains effective for 6 months of exposure to weathering for non-washable items: tents, tarps, awnings, patio umbrella covers, kennel covers, stall covers. Repellency remains effective for 25 washings for washable items: sleeping bag covers, backpacks, outdoor furniture covers, outdoor furniture cushion covers, netting, blankets, ground cloths, horse blankets, pet bedding.
EPA Reg. No 74843-5 EPA Est. No 74843-CHN-001

Active Ingredients:
Permethrin: 0.52%
Other Ingredients: (Gear): 99.48%
Total: 100.00%

Fitting and Care Tips:
1. When putting the mask on your horse, approach the horse from the left side. Directly approaching your horse with the mask could startle him.
2. Open the two locking fasteners and place the ears through the mask with the forelock over the trim and mesh. Secure both the locking fasteners under the jaw.
3. Once the mask has been fastened with the right amount of snugness, check each side of the horses face by allowing your fingers to slip comfortably between the mask and your horse. The mask fabric should not be too close to your horse’s eyes; ensure the eye lashes do not poke through the material.
4. Straps can be adjusted for a custom fit. Checking the mask daily is recommended. Examine the condition of your horses face and eyes. Check for any damage to the mask. Replace the mask if damage is found, as it is difficult to repair. It’s important to keep the mask clean. Wash the mask periodically, with mild soap and water. Caution: vision may be impaired during rainstorms.

Style Item Number Model Number UPC
Horse E014792 HRS 1000189 095668944803
XL E014792 XLG 1000190 095668944933

Product Reviews by Customers

4.7 / 5.0
7 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Love the Manna Pro Optiforce Fly Mask
I really like the manna pro optiforce fly mask. My mare’s face Is usually covered with flies even the day after I wipe her down with fly spray. With the pro force mask there are never any flies on her face now
July 29, 2018
1 month ago
opti force
strong mask due to nose piece and gives horse good visabilty
May 21, 2018
3 months ago
horses like it
I find it best to turn up the ribbon part on top of their noses. It's still plenty long, but doesn't rub that way as the netting is soft. This mask is not as hot as some of the heavier thicker netting with fur so doesn't leave sweat marks on their faces. It's the only mask one of my horses wants to wear and runs from others. It also doesn't grab bad grass seed heads like the larger net ones do. If your horse has a wide eye area, you'll need to size up to XL. I found the eye area a bit tight on my quarter horses in the reg. horse size. A mare who usually wears Arabian sz masks can wear the reg. horse size.
June 12, 2017
Great item!
Very lightweight and comfortable in hot humid weather. The repellent is an excellent plus and the horse's vision is not impaired as with other masks. My horse doesn't mind wearing it at all so I got 2 this way he can always have a clean mask. Certainly recommend this product!!
August 25, 2016
Fit/sizing is strange but mask has other great features
The 900-1200 size does not fit larger quarter horses around the cheeks.The warmblood X-large size fits around their cheeks but is then is very loose in the face. Two of my QH geldings that weigh 1200 and 1000 have to use the warmblood X-large size. We have a 3 year old QH filly that is about 900 and both sizes are too big for her. Other than the sizing/fit issues, I love them. You can see their eyes which is great for checking to make sure everything is OK. They are longer on the face which provides more coverage on the muzzle/nose for flies and sun. The bug repellent is awesome also. I see flies all over the other masks, but not these. It is very hot here in AZ and this lighter weight/breathable mask is a big plus. We have flies from March to November so comfort/lightness/breathability is a plus. if not for sizing/fit issues, would have given 5 stars.
July 28, 2016
Very see through
I like the fact I can see the eyes and they can see just as well. No flies on mask much. However I am using fly control in other ways as well.Only con I have noticed is that on one of the horses, the eye lashes have gone thru the fabric, and I have to readjust the fit now and then if she rubs against something.. So far, so good.
June 26, 2016
Really keeps the flies away
I bought one of these last year for one of my mares, and never had a problem with flies around her face. It's extremely durable (she is only 3 and a hot mess!), it looks nice on her and fits really nice. I was going to use it again this year, but read the label and the repellant doesn't last more than a year, so I bought a new one for her and for the other mare. We are ready for fly season!
April 13, 2016
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Why did you choose this? Store
These really work. Transitioning the entire herd of horses here to these for daily turnout
Cherie B on May 7, 2017
Giving it a try on my two mares. Not ready to rate as yet, but I love that they can see more clearly.
Valerie S on Jun 26, 2016
These really work. Transitioning the entire herd of horses here to these for daily turnout
Cherie B on May 7, 2017
For my donkey. I am hoping it will fit him.
KATHY C on Apr 18, 2017
Giving it a try on my two mares. Not ready to rate as yet, but I love that they can see more clearly.
Valerie S on Jun 26, 2016
For my donkey. I am hoping it will fit him.
KATHY C on Apr 18, 2017
How long does the repellent last on these masks considering rain, etc.?
A shopper on Apr 15, 2017
BEST ANSWER: I live in the Texas Panhandle and I buy mine about this time of year, our fly season lasts until late October, early November. It lasts the whole season.
YES, will there be an Arab size -- I need it for my Welsh Cob?
A shopper on Apr 25, 2017
BEST ANSWER: The Horse size fits our Icelandic mare just fine. She weighs 750-800 lbs. We usually use Cob-size tack for our Icelandics.
is this the new one with equi-glow?
A shopper on Apr 25, 2017
BEST ANSWER: Yes, Equi-Glo Nite Reflector material.
when will the smaller size 900-1100 be available? I need the Arab size.
A shopper on Sep 30, 2016
BEST ANSWER: unfortunately the manufacturer has not provided us with that information at this time.