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Fly Sheets

10 Jun 2026

Fly sheets for horses are designed to protect them from the discomfort and health risks posed by biting insects.
One of the primary advantages of using fly sheets is the barrier they provide against pests, reducing the risk of bites and potential infections. They also offer UV protection, which is beneficial in preventing sunburn and coat bleaching, particularly important for horses with light-colored coats. Fly sheets can help alleviate stress and anxiety in horses during peak insect seasons, helping to keep them more settled.
However, there are some considerations to keep in mind. While many fly sheets are made from lightweight, breathable materials, there is a risk of overheating if not chosen carefully. It's essential to select a fly sheet with adequate ventilation to ensure the horse remains comfortable. Additionally, some horses may find fly sheets restrictive, and if not fitted correctly, they can cause rubbing and discomfort. It is also important to consider the environment that the horse lives in, are there lots trees / bushes that the sheet could get caught in? or is the field clear of hazards? Regular checks and adjustments are necessary to ensure the fly sheet is serving its purpose without causing any harm.
It is important to keep an eye on the weather forecast and the flies, then choose the appropriate protection, you may not need any at all!...
Mesh fly rugs
  • Keeps insects away from the skin while remaining breathable.
  • Different brands and types will have different types of mesh, some are very soft and thin, and others feel more robust.
  • They have good air flow and so are suitable to use on very hot days
  • No more risk of over-heating than if they were un-rugged.
  • A fly rug can help to keep the horse cool, as the light colours that fly rugs usually come in reflect heat.
  • Some can also provide protection from UV rays.
  • Prevent darker coats from fading in the sunlight.
  • The tighter the structure of the mesh the more protection offered to the horse
Sweet-ich rugs
  • Developed specially to keep midges away from sweet itch sufferers.
  • A sweet itch rug is very tightly woven, made from a denser mesh than a mesh fly rugs.
  • If your horse suffers from sweet itch, it is therefore important to invest in a sweet itch rug rather than an ordinary fly rug.
  • Sweet itch rugs tend to come with a belly flap and generous tail cover to protect the very thin-skinned underneath of the belly and the dock – areas that are prone to bites and irritation.
Waterproof fly rugs
  • A relatively recent innovation, they feature waterproof panels along the top of the neck and back.
  • Useful for those days that are mild but showery.
  • Waterproof fly rugs are more breathable than a 0g turnout rug, but less breathable than a fly rug that does not feature waterproof panels.
  • These rugs are ideal for days with mixed weather, but on very hot days, a mesh fly rug, sweet itch rug, or summer sheet may be best for maximum breathability.
Summer fly rugs
  • Suitable for use in the field and stable.
  • A thin sheet offers protection from insects and UV rays in the field.
  • Some are also water resistant.
  • Used in the stable or for travelling, they can keep dust and hay off the horse and can help to keep them clean.
  • The light colour will keep your horse cool, so although they are made of a denser material, the horse should not overheat while wearing a summer sheet any more than they would if they were un-rugged.
  • These rugs would be best saved for warm or breezy days, and are less suitable for wear in wet weather.
  • Some sheets are shower-proof, but will not withstand any substantial amount of rain.
  • A waterproof fly rug would be more effective at keeping your horse dry on wet, warm days.
In summary, while fly sheets can be highly beneficial in protecting horses from insects and the sun, it's crucial to choose the right type, ensure proper fit, and monitor the horse for any signs of discomfort or overheating.
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