Collection: Dog Sweaters

Cozy, cute and practical, a dog sweater is the easiest way to keep your dog warm on chilly days while showing off a little personality. Whether your pup shivers on fall mornings, spends winter curled up by the heater or simply looks adorable in knitwear, our dog sweaters collection has a style for every dog. At T-Rex Pets, you'll find classic cable knit sweaters, fleece pullovers, hoodies, turtlenecks and seasonal and holiday designs, including best-selling Fashion Pet favorites like the Cable Knit Dog Sweater in Red and the Camouflage Sweater for Dogs.

Why Dogs Wear Sweaters

• Warmth for small and short-haired dogs: Chihuahuas, Yorkies, Dachshunds, French Bulldogs, Whippets and other small or thin-coated dogs lose body heat quickly.

• Comfort for seniors: Older dogs often feel the cold more and can find stiff joints more comfortable when kept warm.

• Indoor coziness: A light sweater helps dogs stay comfortable in cool, drafty homes during winter.

• After grooming: Dogs with a fresh short trim may need a little extra warmth.

• Style and fun: Sweaters are perfect for photos, holidays and outings.

Dog Sweaters vs Dog Coats: What's the Difference?

Sweaters are soft, stretchy layers made for mild cold, indoor warmth and dry days. They're comfortable for longer wear and easy to pull on. Coats are built for harsher weather, with insulation and water-resistant or waterproof outer shells for snow, rain and wind. Many owners use a sweater for everyday chill and switch to a coat for freezing or wet walks. On very cold days, a thin sweater can even be layered under a roomy coat. Browse our dog coats for heavy-duty winter protection.

Types of Dog Sweaters

Cable Knit Sweaters

Timeless and cozy, cable knit dog sweaters are a classic for fall and winter. They're warm, stretchy and look great on dogs of all sizes.

Fleece Sweaters and Pullovers

Fleece is soft, lightweight and warm without bulk. It's easy to wash and dries quickly, which makes it a practical everyday choice.

Dog Hoodies

Hoodies add casual style and a little extra warmth. Many dogs look adorable with the hood down. Make sure the hood doesn't cover your dog's eyes or ears during walks.

Turtleneck Sweaters

High-neck sweaters add warmth around the neck and are especially good for long, slim breeds like Greyhounds and Whippets.

Holiday and Seasonal Sweaters

Festive sweaters for Christmas, Halloween, Valentine's Day and game day make your dog part of every celebration. For more dress-up fun, see our dog costumes.

Patterned and Fashion Sweaters

Camouflage, stripes, argyle and bold colors let you match your dog's look to their personality.

How to Find the Right Fit

A well-fitting sweater keeps your dog warm without pinching, rubbing or slipping. Measure your dog while standing:

• Chest girth: The widest part of the rib cage, just behind the front legs. This is the most important measurement for sweaters.

• Back length: From the base of the neck to the base of the tail.

• Neck: Around the base of the neck.

Check the size chart for each style. A sweater should feel snug but not tight; you should be able to slide two fingers under the fabric. Leg openings shouldn't rub, and male dogs need a belly cut that stays clear when they urinate. Deep-chested breeds may need to size up. Many happy customers find their dogs fit well when they follow the chart, like the shopper whose 19-pound senior dog fit perfectly in a medium.

Sweaters for Every Size

Small and toy dogs: Small dog sweaters should be lightweight and stretchy so they don't weigh down tiny frames.

Medium dogs: Look for a flexible fit that allows natural movement for walks and play.

Large dogs: Large dog sweaters should have generous chest room and longer back lengths. Big, short-haired breeds like Boxers, Great Danes and Pit Bull-type dogs often appreciate the extra warmth.

Helping Your Dog Get Comfortable in a Sweater

Introduce sweaters slowly. Let your dog sniff it, then gently slip it over their head while offering treats. Start with a few minutes at a time indoors, rewarding calm behavior, and build up gradually. Choose soft, stretchy fabrics for the first try, as stiff materials can feel strange. If your dog freezes, tries to rub it off or seems stressed, remove it and try again later.

Sweater Safety and Care Tips

• Watch for overheating: Remove the sweater if your dog pants heavily or seems too warm, especially indoors.

• Supervise: Don't leave a sweater on an unsupervised dog or in the crate, where it could snag.

• Check for loose threads and holes your dog could chew or get caught in.

• Keep it dry: A wet sweater can make your dog colder. Use a raincoat on wet days.

• Wash regularly: Follow the care label. Most sweaters can be machine-washed on a gentle cycle with mild detergent and laid flat to dry to keep their shape.

• Brush first: Brushing before dressing prevents matting under the fabric. See dog grooming tools.

Why Shop Dog Sweaters at T-Rex Pets?

• Best-selling Fashion Pet sweaters plus fleece, hoodies and holiday styles.

• Sizes from tiny to large with easy size charts.

• Fast US delivery and 24/7 sizing help at (208) 352-6050.

Wrap your dog in warmth and style. Complete the look with dog boots or explore all dog apparel.