Dog Underwear

Dog underwear helps keep your home clean and your dog comfortable during a heat cycle, while house training, or when a dog tends to mark indoors. This collection currently features a waterproof dog diaper in nylon, available in four colors and sizes XS to XL, designed for the warmer spring and summer months. For more everyday wear, browse our full range of dog clothes.

How to choose the right dog underwear

Purpose: Female dogs in heat, puppies in training and dogs that mark indoors all benefit from protective underwear. If leaks appear suddenly in an adult dog, ask your vet first, since incontinence can have a medical cause.
Waterproof layer: A waterproof outer fabric helps protect sofas, beds and car seats from leaks.
Waist fit: The garment should sit snugly around the waist without pinching, so it stays in place when your dog walks, sits and lies down.
Season: Lightweight nylon suits spring and summer, when heavier fabrics can feel warm.
Style: A fun print and color choice, such as fruity, blue, pink or purple, makes it easier to tell several pairs apart.

Sizing and fit

Measure your dog's waist around the belly just in front of the hind legs, and note the back length and weight. Compare these numbers with the size chart on the product page. If your dog falls between two sizes, choose the larger one to avoid rubbing, and if you are unsure, you can reach us through our contact page.

Popular picks in this collection

Waterproof Dog Diaper: a nylon diaper with a playful print, in fruity, blue, pink or purple and sizes XS to XL, for dogs in heat, puppies in training and dogs that mark indoors during the warmer months.

Pairs well with

For heavier protection, see our dog diapers, and place dog pee pads in the areas your dog uses most. Soft dog pajamas and dog pants add extra coverage at home, and our dog grooming supplies help keep your dog fresh between changes.

Dog underwear FAQ

When should a dog wear underwear or a diaper?

Dog underwear is useful during a female dog's heat cycle, during house training, for dogs that mark indoors and for some older dogs. For any new or unexplained leaking, ask your vet to rule out a health issue before relying on underwear.

How long can a dog wear a diaper?

A dog diaper should be checked often and changed as soon as it is wet or soiled. Give your dog regular breaks without the garment so the skin can stay clean and dry, and wash the area gently if needed.

How do I wash reusable dog underwear?

Rinse reusable dog underwear after use, then wash it following the care instructions on the product page and let it dry completely before the next use. Having two or three pairs makes rotation easier.

Will my dog accept wearing underwear?

Most dogs accept dog underwear after a short adjustment period. Put it on for a few minutes at a time with treats and praise, and check that the size is not too tight if your dog keeps trying to remove it.