A winter coat isn’t necessary for every dog. Many healthy, medium- to large-sized dogs with a thick undercoat can manage just fine without extra protection, even in cold temperatures. However, there are situations and types of dogs for which a functional, breathable winter coat or blanket is useful or even recommended—especially to keep the skin healthy and prevent irritation caused by moisture or trapped heat.

Which dogs benefit most from a winter coat?

The following dogs, in particular, are at increased risk of getting cold or developing skin problems in cold weather:

• Small dogs: They lose heat more quickly due to their unfavorable ratio of body surface area to body volume.
• Short-haired or sparsely coated dogs: Breeds without an undercoat (e.g., greyhounds, pinschers, Dalmatians) have very little natural protection against the cold.
• Older dogs: As dogs age, their muscle mass and metabolic activity decrease, which reduces heat production.
• Dogs that are sick or recovering: Conditions such as arthritis, heart problems, or metabolic disorders reduce a dog’s tolerance to cold.
• Dogs from warmer regions: Animals that originally come from southern countries are often genetically less well-adapted to cold winters.

The right coat for any weather

Not every coat is suitable for every type of weather. Especially with breathable winter coats, it’s crucial that thermal insulation and moisture management work in harmony to keep your skin healthy.

Transitional season and cool weather

When temperatures are just above freezing or when it's windy and wet, one of the following is usually sufficient:

• lightweight, wind- and water-resistant coat

• breathable dog sweater

The main focus here is on protection against getting chilled by wind and moisture. Breathable materials prevent sweat or condensation from building up under the coat, which could irritate the skin.

Freezing temperatures and snow

In case of severe frost or extended exposure to snow, we recommend:

• Padded, insulated dog coat

• warm, breathable sweater

Make sure the coat not only provides warmth but also wicks moisture away from the body to prevent skin irritation and heat buildup. Dogs are particularly sensitive in the belly and chest areas, as there is little muscle tissue there.

Unpredictable winter weather

When temperatures fluctuate widely, combination coats with a removable fleece lining are ideal. They allow for flexible adjustments without having to carry multiple coats, and their breathable materials are gentle on the skin.

Technical criteria for a good winter coat

A functional dog coat should not only keep your dog warm but also promote healthy skin:

• Fit: The coat should fit well; it shouldn’t chafe or restrict movement. The armpits, neck, and stomach are particularly sensitive areas.

• Freedom of movement: The shoulders and spine must not be restricted.

• Breathability: High-quality materials wick moisture away from the skin, prevent heat buildup, and protect the skin from irritation.

• Fabric quality: Water-repellent outer fabrics combined with warm, skin-friendly inner materials are more functional than fabrics designed purely for fashion.

• Individual needs: Activity level, duration of the walk, and personal sensitivity to cold play a greater role than general temperature guidelines.

A breathable winter coat or blanket reduces the risk of skin irritation, keeps the fur dry, and supports the skin’s natural protective function.

Conclusion

A dog coat is not a fashion accessory, but a health-related aid —when used properly, it can significantly improve a dog’s well-being and skin health. Whether a coat is necessary depends on the individual dog, its physical condition, and the environmental conditions.

If you're unsure, keep a close eye on your dog: trembling, stiff movements, or reluctance to move can be signs that your dog is cold. If you have any questions, veterinarians or experienced pet store staff can offer advice, as general recommendations don't apply to every dog.

Extra tip: Look for breathable, moisture-wicking materials that protect your dog’s skin without restricting movement. This will help keep your dog healthy, warm, and active even in winter.