Horseware Rugs
Liners
Turnout, stable, coolers, liners and hoods - find the right weight fast.
Horseware Liners
Which Horseware liner do you need?
Pick the liner by the gram fill you want to add, not by the rug you already own. For most horses the sensible first buy is a mid-weight: the Horseware Liner 200G (£77.95) turns a lightweight turnout into a proper mediumweight, and the Horseware Liner 300G (£86.95) takes it up to a genuine winter rug. If you want the lightest bit of extra warmth on a cold-but-not-freezing night, the Horseware Liner 100G (£68.95) or the Horseware Rambo Airmax Liner (£68.95) do that job. For deep midwinter on a clipped horse, the Horseware Liner 400G (£95.95) is the heaviest fill here, and the Horseware Rambo Optimo Liner 300G (£103.95) is the warmest of the Optimo-fit liners. This collection holds 16 Horseware liners, 14 of them in stock, from £55.95.
In a hurry?
- Best all-rounder: Horseware Liner 200G – £77.95 (5ft 6–7ft 3 in stock)
- Cheapest way in: Horseware Pony Liner 100G – £55.95
- Best value in horse sizes: Horseware Liner 100G – £68.95
- Warmest: Horseware Liner 400G – £95.95 (5ft 6–7ft 3 in stock)
- Warmest Optimo fit: Horseware Rambo Optimo Liner 300G – £103.95
- For a bigger, longer horse: Horseware XL Liner 100G – £77.95 (6ft 0–7ft 6)
- For ponies: Horseware Pony Liner 200G – £59.95 (4ft 0–5ft 9)
How do the Horseware liners compare?
| Liner | Best for | Sizes in stock | From |
|---|---|---|---|
| Horseware Pony Liner 100G | A light top-up of warmth for ponies | Selected sizes 3ft 9–5ft 9 | £55.95 |
| Horseware Pony Liner 200G | The everyday pony mid-weight | 4ft 0–5ft 9 | £59.95 |
| Horseware Liner 100G | Cool nights, unclipped horses | 5ft 6–7ft 3 | £68.95 |
| Horseware Rambo Airmax Liner | Light warmth with airflow through the layer | 5ft 6–7ft 3 | £68.95 |
| Horseware Liner 200G | The do-everything winter liner | 5ft 6–7ft 3 | £77.95 |
| Horseware XL Liner 100G | Light warmth on a big or long-backed horse | 6ft 0–7ft 6 | £77.95 |
| Horseware Dry Liner | Wicking a damp horse dry under a rug | 5ft 6–7ft 3 | £86.95 |
| Horseware Liner 300G | Cold winter nights on a clipped horse | Selected sizes 5ft 6–6ft 9 | £86.95 |
| Horseware XL Liner 200G | Mid-weight warmth in the biggest sizes | Selected sizes 6ft 0–7ft 6 | £86.95 |
| Horseware Rambo Optimo Liner 100G | Layering inside an Optimo turnout | 5ft 9–7ft 3 | £86.95 |
| Horseware Ionic Therapy Liner 200G | Mid-weight warmth from the Ionic Therapy range | 5ft 6 only | £89.95 |
| Horseware Liner 400G | The heaviest fill in the collection | 5ft 6–7ft 3 | £95.95 |
| Horseware Rambo Optimo Liner 200G | Mid-weight Optimo layering | Selected sizes 5ft 9–7ft 3 | £95.95 |
| Horseware Rambo Optimo Liner 300G | The warmest of the Optimo-fit liners | 5ft 6–7ft 3 | £103.95 |
What is a rug liner and why use one?
A liner is an extra insulating layer that goes inside a turnout or stable rug rather than over the top of it. Instead of owning a lightweight, a mediumweight and a heavyweight turnout, you own one good outer rug and change the liner underneath as the weather changes. The outer rug keeps doing the waterproofing and the wear; the liner does the warmth.
The practical wins are storage and washing. Three turnout rugs take up a lot of tack-room space and are heavy, awkward things to clean. A liner is light, packs down small and washes easily. It also means that when the weather swings mid-week – and in the UK it always does – you are adding or removing a layer rather than swapping the whole rug and hoping the fit is the same.
How much warmth does each gram weight add?
The gram figure is the fill weight, and it stacks on top of whatever your outer rug already gives you. As a rough guide: 100g adds a light lift for a chilly night, 200g takes a lightweight turnout to roughly mediumweight, 300g gets you into proper winter territory, and 400g is for clipped horses in genuinely cold, still conditions. Watch your horse rather than the thermometer – warm ears and a dry, relaxed coat under the rug mean you have it about right, and sweat under the shoulders means you have gone too heavy.
What does the Horseware Dry Liner do differently?
The Horseware Dry Liner (£86.95) is the odd one out in this collection because it is about moisture rather than gram fill. It sits against a damp horse and helps move that moisture outwards so the coat dries while the horse stays rugged. That makes it useful for a horse who comes in wet from the field or slightly sweaty after work and needs to go straight into a rug. It is stocked right through 5ft 6 to 7ft 3.
Will a Horseware liner fit the rug you already own?
Horseware liners are designed to attach inside Horseware outer rugs, and the ranges are matched deliberately – the Rambo Optimo liners are built for the Optimo system, the XL liners for the longer-cut rugs, and the standard Horseware Liner 100G, 200G, 300G and 400G for the mainstream Horseware turnouts. Attachment points, cut and neck shape vary between ranges, so a liner from one range will not always sit correctly inside a rug from another.
If you are not certain which outer rug you have, or the label has long since worn off, get in touch and our team will help you match it before you order. That is the single most common reason a liner comes back, and it takes about two minutes to check.
What size Horseware liner do you need?
Take the same size as your outer rug. Liners use the standard UK rug measurement – from the centre of the chest, along the horse's side, to the point of the buttock, in feet and inches – and they are cut to sit inside a rug of the matching size, so sizing up "to be safe" causes bunching rather than extra warmth.
Pony sizing runs from 3ft 9 up to 5ft 9, horse sizing generally starts at 5ft 6, and the XL liners cover 6ft 0 up to 7ft 6 for taller, longer-backed horses. The pony and horse ranges overlap at 5ft 6 and 5ft 9, so if your pony measures in that band, either can work – match whichever your outer rug is.
How do you wash a rug liner?
Brush the loose hair and dried mud off first, then a cool machine wash on a gentle cycle with a rug wash or a plain non-biological detergent. Skip fabric conditioner and skip the tumble dryer – heat can flatten the fill, and flattened fill is warmth you have lost. Hang it to dry and make sure it is completely dry before it goes back inside a rug, or you will trap damp against the horse.
Frequently asked questions
Can you use two liners at once?
It is better to move up a gram weight than to double up. Two liners inside one rug tend to shift against each other, bunch at the shoulder and rub. If a Horseware Liner 200G (£77.95) is not enough on the coldest nights, step to the Horseware Liner 300G (£86.95) or Horseware Liner 400G (£95.95) rather than stacking layers.
What is the cheapest Horseware liner here?
The Horseware Pony Liner 100G at £55.95, followed by the Horseware Pony Liner 200G at £59.95 – both pony sizes. In horse sizes the entry point is £68.95, shared by the Horseware Liner 100G and the Horseware Rambo Airmax Liner, both stocked from 5ft 6 to 7ft 3.
Do you need a liner if you already own a heavyweight turnout?
Not for the coldest weather, no – but a liner is what fills the gap either side of it. Most UK winters spend far more days in the 100g to 200g range than in true heavyweight conditions, so a lightweight turnout plus a Horseware Liner 100G (£68.95) or Horseware Liner 200G (£77.95) covers more of the season than the heavyweight does, and gives you something to strip back on a mild afternoon.
What is the difference between the standard and XL liners?
Cut and size range. The standard Horseware liners are stocked from 5ft 6 to 7ft 3, while the XL liners run 6ft 0 to 7ft 6 with a longer, roomier shape for big or long-backed horses. The Horseware XL Liner 100G is £77.95 and the Horseware XL Liner 200G is £86.95. Choose the XL only if your outer rug is an XL-cut rug – the two are meant to go together.
Which liner suits a clipped horse living out?
A clipped horse loses heat fast in wind and wet, so a 300g or 400g fill under a good waterproof turnout is the usual answer: the Horseware Liner 300G (£86.95), the Horseware Liner 400G (£95.95) or the Horseware Rambo Optimo Liner 300G (£103.95), which is stocked right through 5ft 6 to 7ft 3. Check under the rug daily and drop a weight if the horse is sweating.
Are the Rambo Optimo liners different from the standard ones?
They are the liners built to work with the Optimo rug system rather than a straight upgrade, and they are priced a little above the standard equivalents: the Rambo Optimo Liner 100G is £86.95, the 200G £95.95 and the 300G £103.95, against £68.95, £77.95 and £86.95 for the standard Horseware Liner in the same fills. Buy Optimo if you have an Optimo outer rug; otherwise the standard liners are the better value.
Still not sure which liner to choose?
If you know your horse's rug size but not which liner range fits your outer rug, get in touch and our team will help you match it. It is a quick conversation that saves a return.
Free UK delivery over £50 · 90-day returns · Expert help
Last reviewed 2026-07-24 by the Just Horse Riders team.