A winter coat is not necessary for every dog. Many healthy, medium to large dogs with dense undercoats do well in cold temperatures without additional protection. Nevertheless, there are situations and dog types for which a functional, breathable winter coat or blanket is useful or even recommended – especially to keep the skin healthy and prevent irritation due to moisture or trapped heat.

Which dogs particularly benefit from a winter coat?

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

• Small dogs: They lose heat faster due to their unfavorable ratio of body surface area to body volume.
• Short-haired or hairless dogs: Breeds without an undercoat (e.g., Greyhounds, Pinschers, Dalmatians) have little natural protection against the cold.
• Older dogs: Muscle mass and metabolic activity decrease with age, which reduces heat production.
• Sick or convalescing dogs: Diseases such as osteoarthritis, heart problems, or metabolic disorders reduce cold tolerance.
• Dogs from warmer regions: Animals originally from southern countries are often genetically less adapted to cold winters.

The right coat depending on the weather conditions

Not every coat is suitable for all weather conditions. Especially with breathable winter coats, it is crucial that thermal protection and moisture management are coordinated to keep the skin healthy.

Transitional period and cool weather

At temperatures just above freezing or in wind and wet conditions, a:

• light, wind and water-repellent coat

• breathable dog sweater

Here, protection against chilling due to wind and moisture is paramount. Breathable materials prevent sweat or condensation from building up under the coat, which could irritate the skin.

Icy temperatures and snow

For severe frost or longer stays in the snow, the following is recommended:

• lined, insulating dog coat

• warm, breathable sweater

Make sure that the coat not only provides warmth but also wicks moisture away to prevent skin irritation and trapped heat. Dogs are particularly sensitive around their belly and chest, as there is little muscle there.

Changeable winter weather

For widely fluctuating temperatures, combination coats with removable inner fleece are ideal. They allow for flexible adjustments without having to carry multiple coats and protect the skin with breathable materials.

Technical criteria for a good winter coat

A functional dog coat should not only provide warmth but also support skin health:

• Fit: The coat must fit well, not chafe, or restrict freedom of movement. Armpits, neck, and belly are particularly sensitive areas.

• Freedom of movement: Shoulders and spine must not be blocked.

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

• Material quality: Water-repellent outer fabrics combined with warming, skin-friendly inner materials are functionally more useful than pure fashion fabrics.

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

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

Conclusion

A dog coat is not a fashion accessory but a health-relevant aid – used correctly, it can significantly improve well-being and skin health. Whether a coat is necessary depends on the individual dog, its physical condition, and external circumstances.

If you are unsure, you should observe your dog carefully: trembling, stiff movements, or avoiding movement can be signs of cold. Veterinarians or experienced specialist retailers can help with questions, as general recommendations do not apply to every dog.

Extra tip: Pay attention to breathable, moisture-wicking materials that protect the skin without restricting freedom of movement. This way, your dog stays healthy, warm, and active even in winter.