A winter coat is not necessary for every dog. Many healthy, medium to large dogs with a dense undercoat do well in cold temperatures without extra protection. 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 are particularly at risk of getting cold or developing skin problems:

• Small dogs: They lose heat faster due to an 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: With age, muscle mass and metabolic activity decrease, reducing heat production.
• Sick or recovering dogs: Conditions such as arthritis, heart problems, or metabolic disorders lower cold tolerance.
• Dogs from warmer regions: Animals originally from southern countries are often genetically less adapted to cold winters.

Choosing the right coat for the weather

Not every coat is suitable for every weather condition. With breathable winter coats, it is especially important that warmth and moisture management are balanced to keep the skin healthy.

Transitional periods and cool weather

At temperatures just above freezing, or in windy or wet conditions, usually a:

• light, wind- and water-resistant coat

• breathable dog sweater

…is sufficient. Here, the focus is on protection against chilling from wind and moisture. Breathable materials prevent sweat or condensation from building up under the coat, which could irritate the skin.

Freezing temperatures and snow

For severe frost or prolonged time in the snow, a:

• insulated winter coat

• warm, breathable sweater

…is recommended. Make sure the coat not only provides warmth but also allows moisture to escape, preventing skin irritation and trapped heat. Dogs are particularly sensitive in the belly and chest areas, where there is little muscle protection.

Variable winter weather

For fluctuating temperatures, coats with removable inner fleece are ideal. They allow flexible adjustment without carrying multiple coats and protect the skin with breathable materials.

Key criteria for a good winter coat

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

• Fit: The coat should fit well, not chafe, and not restrict movement. Armpits, neck, and belly are especially sensitive areas.
• Freedom of movement: Shoulders and spine must not be restricted.
• Breathability: High-quality materials wick moisture away, prevent trapped heat, and protect the skin from irritation.
• Material quality: Water-resistant outer fabrics combined with warm, skin-friendly inner materials are more functional than purely decorative fabrics.
• Individual needs: Activity level, walk duration, and the dog’s personal cold sensitivity matter more 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—it is a health-related aid. Used correctly, 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 unsure, observe your dog closely: shivering, stiff movements, or avoiding activity can indicate cold. For questions, veterinarians or experienced retailers can provide guidance, as general recommendations do not apply to every dog.

Extra tip: Choose breathable, moisture-wicking materials that protect the skin without restricting movement. This keeps your dog healthy, warm, and active throughout the winter.