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A woman in a denim shirt and ball cap gently checks on her horse, who wears a Cashel Crusader fly mask and fly sheet for full UV and insect protection. For horses with sensitive, light-colored skin like this one's white face, the Crusader mask blocks up to 70% of harmful UV rays while its three-hole cap design and shaped eye darts keep ears and lashes free from rubbing — a comfortable, adjustable solution for riders managing sun damage and fly bites in tender areas.
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Horse Fly Protection: Find the Right Cashel Products for Your Horse

By Cashel Company
June 19, 2026

As the days get warmer, the fly fight begins — and it's more than just an annoyance. While flies make you cringe and swat, they can make your horse downright miserable. Constant tail swishing, head tossing, and foot stomping aren't just irritating; they can lead to sores, stress, and even illness.

That's where Cashel comes in. With the right horse fly protection gear, you can help your horse stay comfortable all season long.

Not sure where to start? We've gathered real-life scenarios from riders just like you to help you match your needs with the right fly protection. Whether you're out riding with friends this summer, managing a large herd, or keeping one special horse happy in the pasture, there's a Cashel solution that fits.

Best Fly Mask for Horses with Sensitive Skin

Julie's Story: Protecting a White-Faced Mare from Flies and Sun

Julie loves everything about her Quarter Horse — especially her bald white face and blue eyes. Every spring and summer, she worries about protecting that sensitive skin from sun damage while also preventing fly bites in tender areas that can lead to sores.

What didn't work

Julie spent a lot of money on sunscreens and fly deterrents in cream, salve, stick, and spray formulations. They offered some protection, but the results were inconsistent and the application was messy.

Her game-changer

The Cashel Crusader Fly Mask —From poll to the tip of their muzzle, the Crusader provides a reliable, comfortable barrier against insects while blocking up to 70% of harmful UV rays — helping prevent sunburn and eye issues in horses with light-colored or sensitive skin.

Available with or without ear coverage, the Crusader features a patented three-hole cap design that keeps ears free and allows the forelock to pass through, reducing rubbing and hair breakage. Shaped eye darts keep the mask away from lashes for comfort and safety.

Fully adjustable fit: Cashel offers a Hook-and-Loop Extender that adds up to 5 inches for a roomier fit, plus trimmable sections in 3/4-inch increments on every Crusader mask for a truly customized fit.

A close-up of a woman fastening the hook-and-loop closure on a Cashel Crusader Long Nose fly mask with ears, showing the mask's three-hole cap design that lets the horse's ears and forelock pass through freely without rubbing or breaking hair. Designed for horses with light-colored or sensitive skin, the Crusader blocks up to 70% of harmful UV rays while creating a reliable barrier against insects from poll to muzzle. The mask's trimmable edges and optional hook-and-loop extender allow for a fully customized, comfortable fit.

Best Fly Gear for Riding and Everyday Use

Tom's Story: Keeping a Working Gelding Comfortable Under Saddle

Tom uses his Quarter Horse gelding for everything — moving cattle, trail riding, and general ranch work. Even with chemical fly sprays applied generously before rides, his horse still attracts biting insects that sour his attitude and make rides increasingly unsafe as agitation builds.

What didn't work

Tom tried every chemical fly repellent he could find and even repurposed other equipment to create barriers. Nothing fit right or worked reliably under saddle.

His upgrade

The Cashel Quiet Ride Fly Protection line. Designed specifically for use while riding, the Quiet Ride line ranges from the full-body Bug Armor Set — which covers poll to tail — to individual pieces like a belly guard, neck cover, or mask. Every item in the line is engineered to shield horses from biting insects without restricting movement or creating hazards under saddle. No more unsafe workarounds.

Best Fly Sheet for Horses That Live Outside

Kristy's Story: Preventing UV Bleaching and Fly Bites

Kristy's beautiful sorrel gelding is pasture-boarded, which means he's outside 24/7. Every summer, his coat bleaches out from constant UV exposure — and flies are a persistent problem on top of that.

What didn't work

Specialized shampoos helped restore some color after bleaching occurred, but Kristy wanted a proactive solution that prevented the problem rather than corrected it.

Her fix

The Cashel Crusader Lightweight Fly Sheet. Its lightweight, breathable mesh stands up to the hottest, buggiest days without causing overheating. The sheet is contoured to prevent shoulder rubbing, and an extra-wide belly band adds comfort and coverage. As a bonus, Kristy can hose her horse down while he's wearing the sheet for a cooling evaporative effect on hot days.

A horse trots freely across a green pasture wearing a Cashel Crusader Lightweight Fly Sheet and fly mask, fenced grazing land and trees in the background. Built for horses that live outside full-time, the sheet's breathable mesh protects against UV bleaching and biting insects on the hottest, buggiest days without causing overheating. A contoured design prevents shoulder rubbing, while an extra-wide belly band adds comfort and coverage — and the mesh holds up even if the horse gets hosed down for a cooling effect.

Affordable Horse Fly Protection for Large Herds

Mark's Story: Fly Control Solutions for 30 Head on a Budget

Mark manages 30 Quarter Horses, so budget is always a factor. After noticing several horses fighting flies heavily last summer, he needed effective fly control that wouldn't break the bank across a large herd.

What didn't work

Very inexpensive masks from other brands failed within days — far short of a full fly season. Frustrating and wasteful.

His solution

The Cashel Econo Line of fly protection. Designed to deliver reliable fly and sun protection at a budget-friendly price point, the Econo Line includes masks and sheets with lightweight mesh to reduce sun exposure, soft edges to prevent rubbing, and adjustable fits to keep gear securely in place — even across a large herd with varying sizes.

A bay horse grazes in a green pasture wearing a Cashel Econo fly mask, with a wood-post fence line in the background. The Econo Line delivers reliable fly and sun protection at a budget-friendly price point, making it a practical choice for managing large herds — with lightweight mesh to reduce sun exposure, soft edges to prevent rubbing, and adjustable fits that hold securely across horses of varying sizes

Best Fly Boots for Horses That Stomp

Lisa's Story: Stopping Incessant Leg Stomping in a Stalled Horse

Lisa's Quarter Horse gelding lives in a stall with a run. Even with a sheet and mask, he stomps constantly from fly irritation on his legs — something Lisa worries could eventually cause injury.

What didn't work

Topical fly sprays on the legs provided only short-term relief and required frequent reapplication.

What's working now

The Cashel Crusader Contoured Leg Guards. Lisa had heard complaints about fly boots not staying in place, but the Crusader Leg Guards address that directly. Soft yet durable, they feature four hook-and-loop closures that keep them securely in place during movement and stomping — providing reliable, all-day protection for horses that struggle most with leg flies.

A close-up of a horse's lower legs standing in green grass, wearing pink Cashel Crusader Contoured Leg Guards secured with multiple hook-and-loop closures. Designed for horses prone to leg stomping from fly irritation, the contoured leg guards stay securely in place during movement, offering reliable, all-day protection that holds up where other fly boots tend to slip.

Find Your Fly Protection Fit

Every horse is different, and so is every fly problem. From the Cashel Crusader Fly Mask for sensitive-skinned horses to the Quiet Ride Bug Armor for horses under saddle, Cashel builds fly protection gear with real riders and real horses in mind. Browse the full Cashel fly protection line to find the right fit for your horse this season.

Shop the full Cashel fly protection line to find the right fit for your horse this season.