How to measure your dog correctly for the K9 body armor
To properly measure your dog for the K9 bulletproof vest, take three key measurements with a measuring tape: the chest circumference just behind the front legs (the most important measurement), the neck circumference at the collar line, and the back length from the base of the neck to the base of the tail. The dog should stand upright, and the tape measure should lie snugly but not too tightly—you should be able to fit one finger under it.
The “Vartoviy K9” body armor is custom-made to your exact measurements, rather than selected from standard sizes (S/M/L), so the accuracy of your measurements directly affects the level of protection: an error of 2–3 cm will make the vest either too tight (causing chafing and restricting breathing) or too loose—and in that case, the HMPE ballistic panel will not fit snugly against the body. Below you’ll find step-by-step instructions for taking measurements, a rough guide to help you understand your dog’s size, common mistakes, and answers to frequently asked questions. The whole process takes about 5 minutes and requires a single centimeter tape measure.What You'll Need Before Taking Measurements
Have a soft tailor’s measuring tape (not a metal tape measure) ready, along with an assistant to hold the dog and a few treats to keep the dog calm. It’s best to take measurements on a firm, level surface while the dog is standing on all four paws with its head held naturally high.
- The dog should be standing, not sitting or lying down—in a sitting position, the chest and back become distorted.
Step 1. Chest circumference (G) — the most important measurement
This is the most important measurement for a body armor vest. Wrap the tape measure around your chest at its widest point—just behind your front legs, along a line that passes through the highest point of your shoulder blades. The tape should fit snugly but not too tightly: you should be able to fit one finger between the tape and your body.
It is the chest circumference that determines how closely the chest and side ballistic panels conform to the body’s shape. If a panel “moves around,” it not only provides poorer protection—it also shifts the center of gravity and hinders the dog’s performance.
Approximate measurements by breed: Belgian Malinois—65–78 cm, German Shepherd — 72–88 cm, Belgian Shepherd (Gründwald, Tervuren) — 68–82 cm, Rottweiler — 88–105 cm.
Step 2. Neck circumference (N)
Measure your neck where a collar would normally sit—roughly in the middle, at the base of the neck in front of your shoulders. This measurement determines the front opening of the body armor: an opening that’s too narrow will chafe and press against the windpipe, while one that’s too wide will sag and fail to hold the chest plate in place.
If you plan to add the optional removable neck protection module, please specify this when placing your order—it is tailored to fit this measurement.
Step 3. Back Length (L)
Measure the distance along the spine from the base of the neck (where the shoulders/withers end) to the base of the tail. The vest should not extend past the base of the tail—otherwise, it will interfere with the movement of the hind legs and disrupt the dog’s stride.
For modular garments, the back length is divided between the chest module and the “back + sides” module; therefore, an accurate measurement ensures that the MOLLE straps and attachment points are spaced correctly.
Additional measurements to speed up the sewing process
For custom tailoring, it’s helpful to add two or three more measurements—they’ll help ensure a perfect fit:
| Parameter | How to measure | Why |
|---|---|---|
| Waist circumference | The narrowest point below the rib cage | Ensures a precise fit of the optional abdominal module |
| Distance between the paws | Chest width between the front legs at the front | Paw cutouts that don’t chafe |
| Dog’s weight, kg | On the scale | Selecting the density of the padding and the panel layout |
Approximate Size Chart (not exact measurements)
“Vartoviy K9” does not sell body armor in fixed sizes (S/M/L)—each product is custom-made for a specific dog based on your measurements. The table below is intended only to give you a rough idea of which weight and size group your dog belongs to. The actual dimensions of the vest are determined by the three measurements you provide.
| Conventional group | Chest circumference | Back length | Examples of breeds |
|---|---|---|---|
| Medium | 60–68 cm | 38–42 cm | Corgi, Beagle, Cocker Spaniel |
| Working (medium) | 68–78 cm | 42–52 cm | Malinois, Border Collie |
| Large | 78–90 cm | 52–62 cm | German Shepherd, Belgian Shepherd, Labrador |
| Extra-large | 90–105 cm | 62–72 cm | Giant Schnauzer, Rottweiler, Malamute |
For small breeds, the dimensions are smaller—read about the specifics of fitting a vest for a small dog in the article “Body Armor for Small Dog Breeds.”
Why Custom-Made Instead of Ready-to-Wear?
A ready-made “S/M/L” vest is a compromise designed for an “average” dog. Real dogs rarely fit these averages: a Malinois and a German Shepherd with the same chest circumference have different body lengths, while a broad-chested bulldog and a long-bodied hound have opposite proportions. Custom tailoring eliminates these compromises.
- The ballistic panel fits snugly against the body—the NVMPE package works only when it fits snugly and does not shift.
- Lighter weight. The “Vartoviy K9” body armor weighs 2.4–2.8 kg; the precise fit distributes this weight evenly and prevents chafing.
- Freedom of movement. Leg openings and the correct back length allow for a natural gait and breathing.
Modular body armor (chest/back + sides/abdomen, with an optional removable neck module), featuring an Cordura 500D outer layer, two carrying handles, D-rings, MOLLE on the sides, and Velcro patches. Ballistic material: UHMWPE (ultra-high-molecular-weight polyethylene) per DSTU 8782:2018, Class 1: stops 9×18 mm PM/APS and 9×19 mm Luger bullets and provides fragmentation protection per STANAG 2920 (V50).
A Quick Primer: DSTU vs. NIJ
Many owners are accustomed to referring to the American NIJ standard (for example, class NIJ IIIA). This is indeed a widely used international benchmark, but in Ukraine, the current national standard for ballistic protection is DSTU 8782:2018. The “Vartoviy K9” body armor is certified specifically under DSTU 8782:2018 (Class 1), not under NIJ.
Classes in different systems are not exact copies of one another, so it is incorrect to compare them on a one-to-one basis. For more information on ballistic standards, see the article on ballistic standards and certification.What Not to Do When Taking Measurements
- Don’t measure over matted winter fur—you’ll end up with an extra 3–5 cm.
- Don’t “allow for growth” for an adult dog—after about 18 months, the chest circumference stops changing.
- Don’t use measurements from an old vest by another manufacturer—fit and cut vary from brand to brand.
- Do not measure a dog that is sitting or excited—the posture distorts the chest and back.
What Happens After We Take the Measurements
Please send us three measurements (chest, neck, back) and, if possible, three photos of your dog—in profile, from above, and from the front. We’ll review the data and confirm the tailoring specifications. You can place an order on the K9 body armor product page (starting at 22,000 ₴) or in the “Protection” category. The product and hardware come with a 12-month warranty, and the ballistic panel comes with a 3-year warranty.
Free shipping within Ukraine via Nova Poshta; orders are shipped within 1 business day.If you're still deciding between ballistic and training gear, compare them in the article "Body Armor vs. Tactical Vest," and be sure to check out the 2026 Body Armor Buyer's Guide before making a purchase.
Frequently Asked Questions
How do you accurately measure a dog’s chest circumference?
Have your dog stand firmly on all four paws, then wrap a soft measuring tape around its chest at the widest point—just behind the front paws, across the highest point of the shoulder blades. The tape should fit snugly, but you should be able to fit one finger underneath it. Take the measurement twice and use the average.
Does the "Vartoviy K9" bulletproof vest come in ready-made sizes S, M, and L?
No. The body armor is custom-made to fit each dog’s specific measurements, so there are no fixed S/M/L sizes. The size chart in the article is only meant as a guide to help you determine which weight group your dog belongs to; the final dimensions are determined by the three measurements you provide.
What is the ballistic rating of the body armor, and is it NIJ IIIA?
The body armor is certified according to the Ukrainian standard DSTU 8782:2018 (Class 1), not NIJ. It stops 9×18 mm PM/APS and 9×19 mm Luger bullets and provides fragmentation protection in accordance with STANAG 2920. NIJ is a separate American standard; its classes are not a direct equivalent to DSTU.
What should I do if my dog's measurements fall outside the chart?
No need to do anything extra—the garment is tailored to your measurements anyway. Just send us your chest circumference, neck circumference, and back length (and preferably a photo as well), and we’ll confirm the tailoring specifications even for non-standard proportions.
How long does it take to make a custom-made item?
Custom tailoring adds a few days to the standard production time. We’ll provide the exact delivery time based on your measurements after they’re confirmed; the finished product will be shipped within 1 business day via Nova Poshta (free shipping within Ukraine).
Can I use measurements from an old vest from another brand?
We don’t recommend it. The cut, fit, and seam allowances vary by manufacturer, so using someone else’s measurements will result in an inaccurate fit. Always measure your dog yourself following our instructions.