rated 4.6/5 by 11,382 customers

    The FlyBlock Boots

    Nobody wants a horse stomping his hooves raw over a few flies. FlyBlock wraps cannon to coronet in breathable mesh built to stay put. One boot, every horse!

    Blocks Every Bite
    One Fit, All Horses
    Breathable Materials
    Protect Your Horse

    Shipping Across the USA

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    11,382 Customers Love Kowby

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    Caroline

    Stopped my horse's stomping within 2 days, and they've never once slipped off, even through a full show season.

    Why People Choose Kowby

    Stomping cut up to 65%*

    Dual-Weave mesh, zero overheating

    Micro-Grip fit: stays on, every ride

    Got Questions? We’ve Got Answers

    One size, precisely built.
    The Micro-Grip hook-and-loop closure adjusts to take up slack, so the same boot secures snugly on a pony's leg or a full-size draft horse's, without a sizing chart to measure against first.

    • Total length: 14.5"
    • Top opening: 18.5"
    • Bottom opening: 14.5"
    • Adjustable closure takes up slack for a snug fit across a wide range of leg sizes

    No chart to measure. No wrong size to order.

    Engineered specifically to stay put.

    • Micro-Grip closure resists slipping and shifting
    • Internal stays keep the boot's shape secure through movement
    • Built to move naturally with your horse, not fight against him

    No more constant checking or readjusting throughout the day.

    Yes, though a nightly break is good practice.

    • Breathable mesh prevents overheating, even in full sun
    • Safe for extended daytime wear
    • We recommend removing them at night to let legs fully air out and do a quick check for rubbing or debris

    Built for real turnout, not just quick trips outside.

    All packaged leave our facility within 24-48 hours on business days, getting your order to your home as quickly as possible.

    • Standard Shipping (5-10 Days): $5

    30-Day Risk Free Trial
    We stand by our product! That is why every purchase is backed by our 30-day money-back guarantee policy. Simply contact us (info@kowby.com) for an easy return.

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    The FlyBlock Boots

    Why People Love It!

    Built to Block Bites

    Mesh creates a physical barrier flies simply can't get through. In a research, leggings cut stomping by up to 65%*. So your horse can finally stand still, eat in peace, and stop fighting bites all day.

    Dual-Weave Mesh

    Engineered in two layers. The outer weave breathes freely and blocks bites, the inner layer keeps moisture from ever getting trapped. Cooler, drier legs, even through the hottest turnout days.

    One Size, Every Horse

    No sizing chart, no measuring, no guessing. FlyBlock's Micro-Grip closure adjusts to fit snugly on everything from compact ponies to full-size draft horses. The same boot, on every horse in the barn.

    Micro-Grip Fastening System

    Interlocking at a microscopic fiber level, not basic velcro. Paired with sewn-in plastic stays that hold their shape, FlyBlock stays secure at the walk, the trot, and everywhere in between.

    Wear It Anywhere

    Out in the pasture, back in the barn, or halfway through a ride. FlyBlock keeps working the whole day through.

    Field & Turnout

    Field & Turnout

    All-day protection out on turnout, rain or shine.
    In the Barn

    In the Barn

    Keeps legs covered even during quiet time in the stall.
    Mid-Training

    Mid-Training

    Stays secure through work, without slowing you down.
    On the Trail

    On the Trail

    Ready for walks, trail rides, or a quick hack around the farm.

    Trusted By 11,382 Customers

    See what our customers are saying about their experience.

    "Excellent quality"

    These fly boots are excellent quality and material. I’m very impressed and I couldn't find a better deal anywhere else. Highly recommend!
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    Kayla O.
    Verified

    "Better than super expensive ones!!!"

    I got these for my 3 y/o as I wasn't sure if she would literally chew them off her front legs. She has not and so far, so good. After almost a week of use the fly boots stay on and stay upright. The velcro tabs are super convenient, I am surprised with how well these boots are holding up. At this point, I will definitely buy these again rather than the more expensive brand, when time to replace. Be sure to measure your horse's coronet. That allows the velcro tabs to be utilized fully so the boots stay on as intended.
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    Noah D.
    Verified

    "Must-have accessory for horse shows!"

    I have two sets of these (different colors) and use them for trailering and standing at the trailer at horse shows. They have been great! Very durable and work well. I can’t review daily turnout durability, but they have been great for what I bought them for and will purchase again if needed. I will say I have big horses and these are still sized big.
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    Aliza C.
    Verified

    "My mini donkey loves them"

    I buy a pair of these every spring for my mini donkey and she wears them non stop until cold weather. They hold up great the do the job. I will buy a new pair next spring.
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    Kathy K.
    Verified

    "Excellent value and quality"

    These actually lasted me all summer. I tried these on one mare and the shooflys on another and they were very comparable in durability and quality. They did not fall down and maintained there original structure all summer. My horses are turned out during the day and stalled at night for reference. Will definitely be purchasing these again!!
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    Lisa C.
    Verified

    "Beyond amazing!"

    Beyond amazing so far. We’ve been through multiple pairs of fly boots and mask trying to find something to stay on! Going on 2 weeks and they have stayed on our 2 horses. Great quality for the price and the Velcro stays fastened well. Would definitely buy again.
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    Kelly O.
    Verified
    Kowby vs. Other Boots

    Micro-Grip Fastening System
    Dual-Weave Breathable Mesh
    One Size, No Chart to Guess
    Sewn-In Support Stays
    Backed by Real Stomping-Reduction Data*
    The FlyBlocks
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    Other Boots
    FEW
    FEW
    The FlyBlocks
    Other Boots
    Micro-Grip Fastening System
    verified
    Dual-Weave Breathable Mesh
    verified
    FEW
    One Size, No Chart to Guess
    verified
    Sewn-In Support Stays
    verified
    FEW
    Backed by Real Stomping-Reduction Data*
    verified