Best for: very tiny dogs and short-leg breeds.

• Height: 11–12" (top of head).
• Leg length: 2.5–3.5" (paw to armpit).
• Girth:

  • Up to 16" normally

  • Up to 18" shoulder height is 6" or less

• Cats: Rarely suitable (few exceptions)
• Styles: Panda, Unicorn, Bunny, Teddy Bear (more coming soon).

Examples: Yorkies, tiny Chihuahuas (3–5 lbs), mini Dachshunds.

⚠️ Weight note: varies by build. Check height and girth first.

Measurements

• Height: 13–14 in. (top of head)

• Girth: 

  • up to 21" around the chest
    (just behind the front legs)

  • 18" or more, the shoulders must measure 6" wide or less

• Light/average builds only

• For wide shoulders → see Size 3

• Not for broad breeds
  (Pugs, Frenchies — see diagram)

⚠️ Weight note: usually under 9 lbs — always check height + girth first.

Examples

• Smaller cats

• Brussels Griffon (8–11 lbs.)

• Chihuahua (6–10 lbs.)

• Dachshund (18–24 lbs., legs > 3.5 in.)

• Havanese (very small, ~7 lbs.)

• Japanese Chin (9 lbs.)

• Maltese (6–9 lbs.)

• Papillon (5–9 lbs.)

• Pomeranian (4–9 lbs.)

• Shih Tzu (9–12 lbs.)

• Toy Poodle (6 lbs.)

• Yorkie, taller (6–9 lbs.)

Measurements

• Height: 15–16 in. (top of head)

• Girth:

  • up to 21" around chest
    (just behind front legs)

  • 18" or more, the shoulders must measure 6" wide or less

• Best for thin builds

• Not for broad breeds (e.g., pugs, Frenchies — see diagram)

⚠️ Weight note:
Varies by build. Usually under 12 lbs. Check height + girth first.

Cats: Most Fit Here (Few Tiny Cats in Size 1)

Examples:

• Most cats

• Border Terrier – 13 lbs

• Boston Terrier (small) – 12 lbs

• Chihuahua mix (tall) – 11 lbs

• Chinese Crested – 10 lbs

• Min Pin – 8–11 lbs

• Mini Poodle – 12 lbs

• Pomeranian (tall) – 12 lbs

• Rat Terrier (mini) – 12 lbs

• Shih Tzu (tall) – 16 lbs

Measurements

• Height: 17–19 in. (top of head)

• Girth: 

  • up to 27" (measure around chest, just behind front legs)

  • 24" or more, the shoulders must measure 8" wide or less

• Fit: small–medium dogs, including broad breeds (Corgis, Frenchies, Havanese)

⚠️ Weight note
Varies by build. See examples below — always check height + girth first.

Examples

• Beagle – 19 lbs

• Bichon Frise – 16 lbs

• Boston Terrier – 15 lbs

• Cockapoo – 16 lbs ***

• Corgi – 24–30 lbs

• Frenchie – 18–30 lbs

• Havanese – 16 lbs

• Jack Russell Terrier – 15 lbs

• King Charles Cavalier – 13 lbs

• Min Pin – 15 lbs

• Mini Doodle – 14 lbs ***

• Mini Schnauzer – 18 lbs

• Pug – 16 lbs

• Rat Terrier – 19 lbs

• Shiba Inu (small) – 17 lbs

• Spaniel (small) – 15 lbs

• Westie – 22 lbs

*** Poodle mixes vary in height. Please measure and include neck length.

Measurements

• Height: 20–23 in. (top of head)

• Girth:

  • 19–30" (measure around chest, just behind front legs)

  • 27" or more, the shoulders must measure 9" wide or less

• Fit: medium dogs; wider shoulders okay (e.g., small English Bulldogs)

⚠️ Weight note
Varies by build. See examples below — always check height + girth first.

Examples

• American Staffordshire Terrier (small) – 45 lbs

• Beagle – 26 lbs

• Boston Terrier – 25 lbs

• Cockapoo – 18–24 lbs

• Cocker Spaniel – 25 lbs

• English Bulldog – 45 lbs

• English Cocker Spaniel – 29 lbs

• Frenchie – 35 lbs

• King Charles Cavalier – 18 lbs

• Mini Aussie – 28 lbs

• Mini Doodle – 23 lbs

• Rat Terrier – 24 lbs

• Sheltie – 27 lbs

• Shiba Inu – 24 lbs

• Welsh Terrier – 23 lbs

Poodle mixes vary in height. Please measure and include neck length.