Blanket when a horse cannot stay warm on its own: clipped horses, hard keepers, the old or unwell, and horses without shelter in cold, wet, windy weather. A healthy, unclipped horse with shelter often needs no rug at all.
How horses stay warm
A horse’s winter coat traps a layer of warm air, and the hairs stand up to add insulation. Rugging flattens that coat, so once you start you take over the job the coat was doing. That is why the decision matters and why over-rugging can leave a horse too warm and sweaty.
Who benefits from a rug
Clipped horses lose their natural insulation and usually need rugging. Older horses, hard keepers, the sick, and thin-coated types feel the cold sooner. Any horse without shelter in cold, wet and windy conditions benefits, because wet and wind strip warmth fast.
Choosing weight and type
A turnout rug for the field must be waterproof and breathable, with the right fill for the temperature: lightweight for mild damp days, mid to heavy weight for hard frost. Fit matters as much as warmth, since a badly fitted rug rubs and slips. See our guides to the best turnout blankets and best horse blankets.
Check underneath, not just outside
Slide a hand under the rug at the shoulder. Warm and dry is right, hot and sweaty means too much, and cold and clammy means too little. Feel the ears and behave-check the horse rather than dressing it for how cold you feel.
Rug care and safety
Check daily for rubs, slipped straps and damp patches, and re-proof or swap wet rugs so a horse is never left cold under a soaked one. Keep spare rugs clean and dry, and adjust as the weather changes rather than leaving the same rug on all winter.
