Horse Rugs
Heavyweight Rugs
Turnout, stable, fly and cooler rugs — lightweight to heavyweight — with a simple weight and sizing guide to get the fit right.
Heavyweight Turnout Rugs
Heavyweight turnout rugs use 300g or more of insulating fill to keep a horse warm through deep winter, hard frosts and cold, wet nights. They suit clipped-out horses, older or fine-coated horses, and any horse living out when temperatures drop towards or below freezing. Just Horse Riders stocks over 80 heavyweight rugs — in turnout, stable and combo styles — from brands including Gallop Equestrian, Shires, Weatherbeeta, Premier Equine, Rhinegold, LeMieux and Saxon.
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In a hurry? Quick heavyweight rug picks
- Best value combo turnout: Saxon Defiant 600D Combo Neck Heavy — from £46.29.
- Popular 350g turnout: Gallop Equestrian Trojan 350 Combo Turnout — from £58.17.
- Trusted 300g turnout: Shires Highlander Original 300 Turnout Rug — from £76.49.
- Premium deep-winter turnout: Premier Equine Buster Storm 420g Combo Turnout — from £196.20.
Heavyweight rugs in this collection start from £13.78 for smaller and clearance sizes.
What counts as a heavyweight horse rug?
A heavyweight rug carries roughly 300g or more of polyfill insulation. As a rough guide: lightweight rugs use around 0–100g for mild days, mediumweight rugs use about 150–250g for cool autumn and spring weather, and heavyweight rugs use 300g and above for the coldest part of winter. The exact warmth a horse needs depends on whether it is clipped, its age, its coat and whether it lives in or out — so treat fill weight as a starting point, not a fixed rule.
Which heavyweight fill weight should I choose?
| Fill weight | Best for | Typical conditions | Example in this collection |
|---|---|---|---|
| 300g | Unclipped or lightly clipped horses; first heavyweight for many | Cold, frosty winter days and nights | Shires Highlander Original 300 Turnout Rug |
| 350g | Clipped horses; those that feel the cold | Hard frosts, exposed fields | Gallop Equestrian Trojan 350 Combo Turnout |
| 360–420g+ | Fully clipped, older or fine-coated horses | Sub-zero nights, deep midwinter | Premier Equine Buster Storm 420g Combo Turnout |
Every horse is different. If you are unsure how much rug your horse needs — especially if it is clipped, older or has lost condition — check with your instructor, an experienced yard manager or your vet before committing to the heaviest weight.
Turnout, stable or combo — what's the difference?
A turnout rug has a waterproof, breathable outer for horses living out in the field. A stable rug is designed for indoor use and is warm but not waterproof, so it should stay in the stable. A combo rug includes an attached neck cover for extra coverage over the neck and wither. This collection includes all three, plus liners you can layer under a lighter outer to build warmth. Browse the full turnout rugs range if you specifically need a waterproof field rug.
Will a heavyweight rug make my horse too hot?
Yes — over-rugging is a genuine risk, and a horse that is too warm can sweat under the rug and become uncomfortable. On milder winter days a 300g+ rug may be more than a horse needs, particularly if it is unclipped or has a thick natural coat. Check your horse regularly by slipping a hand under the rug at the shoulder: it should feel warm and dry, not hot, damp or sweaty. Many owners keep a lighter and a heavier rug and swap between them as the weather changes. If in doubt about your horse's individual needs, ask your vet or an experienced yard manager.
Which are our favourite heavyweight rugs?
- Saxon Defiant 600D Combo Neck Heavy (from £46.29) — a tough 600-denier combo turnout that is one of our best-stocked, best-value heavyweight options.
- Gallop Equestrian Trojan 350 Combo Turnout (from £58.17) — 350g fill with a 600d ripstop outer and pleated shoulders that help reduce rubbing.
- Shires Highlander Original 300 Turnout Rug (from £76.49) — a dependable 300g turnout from a long-established British brand.
- Weatherbeeta Comfitec Tyro Turnout Combo Neck 360G (from £89.99) — 360g combo with the neck cover included for fuller coverage.
- Premier Equine Buster Storm 420g Combo Turnout Rug with Classic Neck (from £196.20) — a heavyweight 420g combo built for the coldest, wettest nights.
- LeMieux Kudos Turnout Rug 350g (from £225.95) — a premium 350g turnout for owners who want a top-tier finish.
How do I get the right rug size and fit?
Rug size in the UK is measured in feet and inches, from the centre of the horse's chest, along the side of the body, to the point of the buttock. A rug that is too small can rub at the shoulder and chest, and one that is too big can slip and become a hazard. Measure your horse with a soft tape before ordering, and check the fit at the withers, shoulder and chest once it is on. If you are between sizes or fitting an unusual shape, ask an experienced yard manager or the rug manufacturer for guidance.
Explore related rug collections
Not sure a heavyweight is right yet? Compare it with our lightweight horse rugs for milder days and our mediumweight horse rugs for the shoulder seasons, or browse every option in our full horse rugs range.
Heavyweight horse rug FAQs
What temperature is a heavyweight horse rug for?
Heavyweight rugs (300g and above) are generally used for the coldest winter conditions — roughly around freezing and below — and for clipped, older or fine-coated horses that struggle to keep warm. On milder days a lighter rug is usually more comfortable. Always judge by your individual horse rather than temperature alone.
What is the difference between 300g and 400g rugs?
The number refers to the grams of insulating fill. A 400g rug holds more warmth than a 300g rug, making it better suited to fully clipped horses, older horses and very cold, sub-zero nights. A 300g rug is often plenty for unclipped or lightly clipped horses in typical UK winter weather.
Can I use a heavyweight turnout rug in the stable?
You can, but a turnout rug's waterproof outer is designed for the field and is less breathable indoors, so a horse may overheat if stabled in a heavy turnout for long periods. For indoor use a dedicated stable rug is usually more comfortable. Several products in this collection are stable rugs or combos made specifically for indoor warmth.
How much do heavyweight horse rugs cost?
At Just Horse Riders, heavyweight rugs start from around £13.78 for smaller and clearance sizes, with popular 300–360g turnouts typically between roughly £45 and £100, and premium 400g+ combos from brands like Premier Equine and LeMieux ranging up to around £225. Prices shown are live on each product page.
How do I stop my rug from rubbing my horse's shoulders?
Rubbing usually points to a rug that does not fit correctly. Measure your horse and choose the right size, look for rugs with shaped or pleated shoulders such as the Gallop Trojan range, and check the fit regularly. A well-fitting shoulder liner or bib can also help. If rubbing continues, ask an experienced yard manager to check the fit.
Rug-buying advice from the Just Horse Riders team. Last reviewed 12 July 2026. Rugging and fit guidance is general — for a clipped, older or unwell horse, please check with your vet or an experienced yard manager.