Do Dog Sweaters Really Keep Dogs Warm? A Practical Guide

Small dogs, short-haired dogs, puppies, seniors, and dogs with little body fat may get cold sooner than large dogs with thick coats. A sweater can be especially useful for a chilly walk or a cool indoor space, while a healthy dog with a dense coat may be comfortable without one.

A sweater adds insulation, but it does not replace shelter or make prolonged exposure to freezing weather safe. Knit fabric may be comfortable in dry, cool conditions, while wet fabric can leave your dog colder, so remove a damp sweater and dry your dog after a rainy or snowy outing.

Measure around your dog’s chest and along their back, then choose a fit that allows easy walking, breathing, and bathroom breaks without rubbing at the legs or neck. You should be able to slip a couple of fingers under the fabric; if your dog freezes, scratches persistently, or tries to pull the sweater off, take it off and reassess the fit.

Try a sweater when your dog seems uncomfortable in the cold, and watch for signs such as shivering, lifting their paws, or wanting to head inside. Remove it when you return to a warm room or if your dog seems too hot, and follow the garment’s care instructions so it stays clean and keeps its shape.

Our Warm Knitted Hooded Pet Sweater for Small Dogs and Cats is one apparel option to consider if you’re shopping for a small pet. For more on deciding when to dress your dog, read our guide to whether dog sweaters keep dogs warm.