Harness for Shih Tzu Puppies: Fit and Size Picks
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A puppy grows fast, so a harness that fits a Shih Tzu puppy this month may be too tight next month. This guide compares six small-dog and puppy harnesses by the chest ranges and features their listings state. None of the listings names the Shih Tzu breed, so use the chest numbers, not a breed label, to decide.
Measure chest girth and neck each time you shop, and compare with the size chart on the product page. Related guides: adjustable harnesses for a growing puppy, harnesses for a toy poodle puppy and chew toys for Shih Tzu puppies.
Quick answer
Four listings give a chest range for the displayed size: YOUALSO 10-13 inches, BOOMIBOO 12-14 inches, matilor 13.5-16.5 inches (with a weight of 10-15 lb) and rabbitgoo 15.1-16.5 inches. YIMEIS and ABRRLO give only X-Small and Medium. For a very small puppy, YOUALSO and BOOMIBOO start lowest. Re-measure often because puppies outgrow a narrow range quickly.
Product comparison
| Product | Size stated | Leash included | Material or care stated |
|---|---|---|---|
| YOUALSO | XXS, chest 10-13 inches | Yes (harness and leash set) | Buckle closure; material not stated |
| BOOMIBOO | XS, chest 12-14 inches | Yes | Hand wash only |
| matilor | Medium, chest 13.5-16.5 inches, 10-15 lb | Not stated (vest only in title) | Mesh |
| rabbitgoo | S, chest 15.1-16.5 inches | Yes | Metal D-ring, nylon, plastic buckle |
| YIMEIS | X-Small (pack of 1), no range | Yes | Polyester blend |
| ABRRLO | Medium, no range | Yes | Cotton blend |
The six harnesses in detail
YOUALSO XXS harness and leash set
What it is: A harness and leash set in pink, size XXS for a chest of 10 to 13 inches. It has a buckle closure and the title mentions cats as well as puppies. The material is not stated.
Who it suits: Owners of a very small or young puppy.
Pros:
- Smallest stated chest range here
- Leash included
Cons:
- A puppy may outgrow it quickly
- Material not stated
Skip if: Your puppy’s chest is already over 13 inches.
View the YOUALSO set on Amazon (affiliate link)
BOOMIBOO step-in harness and leash set, XS
What it is: An adjustable step-in puppy vest with a leash, in blue. Size XS is listed for a chest of 12 to 14 inches. The care instruction is hand wash only.
Who it suits: Owners of a small puppy who want a step-in style and a leash in one pack.
Pros:
- Step-in and adjustable
- Chest range stated
- Leash included
Cons:
- Hand wash only
- Material not stated
Skip if: You want a machine-washable harness.
View the BOOMIBOO set on Amazon (affiliate link)
matilor step-in breathable puppy vest, Medium
What it is: A mesh step-in vest in blue. The Medium listed here is for a chest of 13.5 to 16.5 inches and a weight of 10-15 lb. The title mentions puppies and cats and does not list a leash.
Who it suits: Owners of a puppy that weighs 10 to 15 lb, since this is the only listing that gives a weight.
Pros:
- Chest and weight ranges both stated
- Breathable mesh
Cons:
- No leash in the title
Skip if: Your puppy is under 10 lb, or you want a leash included.
View the matilor vest on Amazon (affiliate link)
rabbitgoo step-in harness and leash set, Small
What it is: A step-in puppy vest with a leash in rose red. Size S is listed for a chest of 15.1 to 16.5 inches. Hardware is a metal D-ring and a plastic buckle, with nylon fabric.
Who it suits: Owners of a puppy with a slightly larger chest who want a leash included.
Pros:
- Chest range stated
- Metal D-ring
- Leash included
Cons:
- Narrow 1.4 inch range
Skip if: Your puppy is under 15 inches of chest.
View the rabbitgoo set on Amazon (affiliate link)
YIMEIS no-pull harness and leash set, X-Small
What it is: A no-pull reflective mesh vest with a leash, in pink, size X-Small (pack of 1). The material is a polyester blend. No chest range is shown.
Who it suits: Owners who want a no-pull, reflective set and will check the size chart.
Pros:
- Reflective and no pull
- Leash included
Cons:
- No chest range given
Skip if: You need a stated chest range.
View the YIMEIS set on Amazon (affiliate link)
ABRRLO soft adjustable harness and leash set
What it is: A soft, adjustable puppy harness with a leash, in pink with a floral pattern, size Medium. The material is a cotton blend. No chest range is shown, and Medium here is not defined.
Who it suits: Owners who like a soft cotton blend and a floral look.
Pros:
- Soft cotton blend
- Adjustable
- Leash included
Cons:
- No chest range, so Medium is hard to judge
Skip if: You cannot confirm the size on the product page.
View the ABRRLO set on Amazon (affiliate link)
Buying checklist
- Measure chest girth and neck, and re-measure as your puppy grows.
- Match the chest to a stated range: 10-13, 12-14, 13.5-16.5 or 15.1-16.5 inches.
- Check weight where given. Only matilor lists 10-15 lb.
- Decide whether you want a leash included. Five of the six are sets, and matilor is a vest.
- Check care: BOOMIBOO is hand wash only.
- If the harness rubs the armpits or slips down the back, re-measure before reordering.
FAQ
Do any of these harnesses mention Shih Tzu puppies?
No. The listings talk about puppies, small dogs and, in some cases, cats, but none names the Shih Tzu. Choose by chest measurement.
Which harness fits the smallest puppy?
YOUALSO lists a chest of 10 to 13 inches and BOOMIBOO lists 12 to 14 inches, the two lowest ranges here.
Which harnesses come with a leash?
YOUALSO, BOOMIBOO, rabbitgoo, YIMEIS and ABRRLO are titled as harness and leash sets. The matilor title lists a vest only.
How often should I re-measure my puppy?
Often, since puppies change size quickly. Check chest and neck each time you reorder, and ask your vet if you have questions about growth.
Which harness is step-in?
BOOMIBOO, matilor and rabbitgoo are titled as step-in vests. The others do not say.
Closing note
For a growing puppy, the chest range matters more than the size word. Pick a harness whose range includes your puppy now, plan to re-measure, and confirm the details on the product page before ordering.
