What is a scrim sheet?

The makers who sell them describe them in much the same terms. LeMieux calls its Scrim a smart, lightweight mesh dress cooler for competitions, shows and events, and says the adjustable front strap gives it a stylish look for wearing between classes. Equinavia describes its Sefyr Scrim Sheet as an everyday poly scrim for after bath time or hand grazing, for when your horse needs some coverage and you don't want a heavy cooler.

TuffRider describes its scrim sheet as light mesh fabric with UV protection, handy to keep in the trailer on long show days or to drape over a horse between classes. Centaur's Scrim Dress Sheet is soft nylon mesh, described as a way to keep a horse clean, cool and show ready.

Names vary. You will see scrim sheet, scrim cooler and dress sheet, sometimes for covers that look nearly identical. Horse & Hound's 2026 cooler buying guide lists a WeatherBeeta Scrim Cooler described as lightweight and breathable, with mesh panels that wick away moisture. The name on the tag is a clue, but the maker's description tells you more about what a particular cover was designed to do.

The listings point the same way. Equinavia's Sefyr is for after bath time and hand grazing. Its Sol Ringside Scrim Sheet is described as keeping a horse clean and fly free while ringside, in flexible poly mesh, sized to fit over a saddle, with a panel across the body that can be embroidered for a custom show look. TuffRider's dual-fabric scrim is described as keeping a horse clean and protected between classes, after riding or during everyday barn use.

Practical Horseman's groom makes a related point about the lightest kind of cover. Horses are more likely to roll when they are sweaty, and dirt and bedding stick to a sweaty horse like magnets, so a light sheet keeps them a little cleaner. She says this about anti-sweat sheets, not scrims by name, but it is the same logic that sends riders to a scrim between classes.

That makes the scrim a show-barn and trailer item first. If you never show, haul or bathe in a way that needs a cover, a plain cooler may do the whole job. More on that at the end.

The table puts them side by side, using what the sources we read say about each.

Practical Horseman's groom defines a cooler as a sheet or blanket that wicks moisture from a wet coat and traps heat against the body so the horse doesn't catch a chill while he dries. She notes that cooler and anti-sweat sheet are sometimes used interchangeably, but the second usually means a sheet used mostly in summer that wicks moisture and gives very little warmth because of its knitted structure. The classic version is the cotton Irish knit with large ventilating holes.

A scrim sits closest to that anti-sweat sheet: open and light. Where it differs is the look and the fit. Many scrims are sold with show-ring touches, such as the contrast binding and braided hip cord on LeMieux's, or a contoured body and an embroidery panel on Equinavia's.

Fly sheets are the mesh sheets sold for sun and insect protection. WeatherBeeta describes its mesh fly sheets as designed to shield a horse from the sun and flies while keeping him cool, and says its summer sheets are not waterproof. You can browse them with the scrims in our fly sheets and summer sheets category, and the heavier covers in our blankets and coolers category.

That is how the grooms we read use mesh. WeatherBeeta's article on cooling out a hot horse in winter quotes a head groom who pulls the tack off and puts an Irish knit or mesh cooler on as a first layer to help moisture escape, then adds one or even two coolers on top depending on the temperature. When a cooler is doing its job, she says, the moisture moves out through the fibers and you can see it bead on the outside. If it gets saturated, swap it for a dry one.

Practical Horseman's groom gives the same layering logic with a warning attached. Layering a heavier cooler over a thin, lightweight one can speed up drying on a very wet or cold day, because the heavy layer keeps the horse warm while the light layer soaks up moisture. She sets a timer to remove the bottom layer before it is so wet you could wring water out of it. Putting a blanket over a cooler is a different matter: she says the blanket can trap moisture against the coat, which defeats the cooler's purpose.

None of this changes the basic rule of drying first and blanketing second. Our can I blanket a wet horse guide walks through how extension specialists say to do it. If your horse is truly soaked, towels, a sweat scraper and a cooler come before any scrim.

TuffRider's scrim listing says it is not designed for turnout. Equinavia's Sefyr and Sol listings say not intended for turnout or other unsupervised purposes. Centaur's listing and TuffRider's dual-fabric listing do not say either way, so read the line for the exact cover you are buying and follow the maker's instructions.

Practical Horseman's cooler advice is a good habit for any light sheet. Unless a cooler has leg straps, which most don't, keep the horse tied while he wears it, because he can shift it out of place by rolling or even just moving around and trap or scare himself. Most scrims have a single hidden surcingle, so the same caution makes sense, though that is our reading of her advice, not something she says about scrims.

TuffRider's scrims are listed in inch sizes, Equinavia's in small through extra large and Centaur's in pony, cob and large horse. Our horse blanket sizing guide shows how to measure your horse for a sheet.

For care, LeMieux's instructions for its Scrim are a gentle 30°C wash with non-biological detergent, loose debris and hair removed first, all fastenings closed, no bleach or fabric softener, reshape while wet, air dry flat and no tumble dryer. TuffRider's scrim listing says machine wash. Care labels differ, so follow the one on your cover.

The mesh cooler category blurs the line, since some mesh covers are sold as coolers. Read the maker's description for what a cover was designed to do.

Horse & Hound's cooler guide says the main purpose of a cooler is to aid cooling after exercise, and that good ones are breathable with effective wicking, and are also often used while travelling and to speed drying and prevent chilling after a bath. A scrim fits the travelling part well. For the winter cooling-out part, use the layering ideas above.

When in doubt about a horse that stays cold, shivers or won't dry, call your vet.