Waterproof Turnout Blankets & Sheets

There is a real difference, and it comes down to where the horse wears it. A turnout blanket has a waterproof, breathable outer shell meant to hold up against rain, mud, and rolling in wet grass, while a stable blanket is built for warmth indoors and typically skips the waterproof coating entirely. Trying to use a stable blanket outside in the rain usually ends with a soaked, cold horse, since the fabric simply isn't treated to shed water the way a true turnout shell is.

Yes, even horses with a long, natural winter coat benefit from a waterproof turnout sheet. A heavy coat traps warmth but doesn't repel water especially well once it's fully soaked through, so a horse can still get chilled standing out in a cold rain even with plenty of hair. A no-fill turnout sheet adds a water-shedding layer on top of that natural insulation without overheating the horse, which is exactly why so many lightweight, zero-gram-fill sheets exist in the first place.

Denier is a measurement of how thick and strong the individual fibers in the fabric are, and in practical terms, a higher denier number means a tougher, more tear-resistant shell. Turnout blankets commonly range from around 320D up through 1680D, and the right number often depends on how rough your horse is on its gear.

• 320D to 420D: Lighter material, best for horses that don't bite, chew, or roughhouse with turnout companions.
• 600D to 900D: A solid mid-range strength suited to most everyday turnout situations.
• 1200D: A heavy-duty standard for horses turned out in groups or in rough pasture conditions.
• 1680D: Among the toughest options available, often paired with ballistic nylon for maximum durability.

There's no single right answer, since fill weight should match your climate, your horse's coat length, and how much natural shelter is available. Fill is measured in grams of polyfill insulation, and the general logic is straightforward once you break it down.

No, not entirely, and this is worth knowing before you rely on a blanket as a horse's only protection. Waterproof shells are genuinely effective at shedding water off the body of the blanket, but during prolonged heavy rain a horse without access to a run-in shed or trees can still end up damp around the neck and tail, since those areas see the most direct, sustained exposure. A blanket is a strong layer of defense, not a total substitute for some form of shelter.

There's a specific process, and skipping steps is usually what shortens a blanket's waterproof life. Most manufacturers recommend cleaning turnout blankets about once a year unless they get unusually dirty.

1. Brush and hose first: Remove loose dirt, mud, and hair before the blanket ever touches water or soap.
2. Wash cool, wash gentle: Hand wash or use a delicate cycle with cool water and a very mild soap made for technical fabrics.
3. Skip the hot water and heavy detergent: Both can break down the waterproof coating permanently.
4. Air dry only: Never put a turnout blanket in the dryer, as heat damages the waterproof membrane.
5. Store bone dry: Putting away a damp blanket invites mildew and can void the waterproofing warranty entirely.