Sizing & Measuring Guide
The perfect fit starts with the right measurements!
Every dog is unique, and finding the right fit is important for both comfort and safety. Whether you're ordering a collar for everyday adventures or specialized training gear, we're here to help make measuring your pup as easy as possible!
Since our BioThane® gear is handcrafted to order, we recommend taking a few minutes to measure your dog before purchasing rather than relying on their breed, weight, or previous collar size.
Find Your Dog's Size
Use the chart below as a general guide to help determine the best collar size and BioThane® width for your dog.
| Size | Neck Measurement | Recommended Collar Width |
|---|---|---|
| XS | Up to 11" | 1/2" |
| Small | 11–14" | 1/2" or 3/4" |
| Medium | 14–17" | 3/4" or 1" |
| Large | 17–20" | 1" or 1.5" |
| XL | 20–23" | 1" or 1.5" |
| XXL | Over 23" | 1" or 1.5" |
Please note: This chart is a general recommendation only. Dogs of the same breed or weight can have very different neck measurements. Always measure your dog for the most accurate fit.
How to Measure Your Dog's Neck
Getting an accurate measurement is the most important step when ordering your new gear!
Step 1: Grab a soft measuring tape.
A flexible fabric measuring tape works best. If you don't have one, use a piece of string and measure it against a ruler.
Step 2: Find the correct position.
Wrap the measuring tape around your dog's neck where their collar will naturally sit, typically a few inches behind their ears.
Step 3: Measure comfortably.
The tape should sit snugly against your dog's neck without squeezing or digging into their skin. Record the measurement in inches.
Step 4: Double-check!
We recommend measuring twice to ensure accuracy, especially if your dog has thick fur or falls between sizes.
Important: Follow the sizing instructions for your specific collar style. Some collars require additional measurements to ensure they can be safely fitted and removed.
Measuring an Existing Collar
Already have a collar that fits your dog perfectly? You can use it as a reference!
Lay the collar flat on a surface and measure from the centre of the buckle to the hole currently being used.
For adjustable collars with different buckle styles, measurement methods may vary. If you're unsure where to measure, reach out to us before ordering.
Tip: Avoid measuring the entire end-to-end length of the collar, as this does not necessarily represent the actual neck size.
Measuring for Different Collar Styles
Flat Buckle & Quick-Release Collars
For everyday collars, measure around the part of your dog's neck where the collar will naturally sit.
A properly fitted collar should be comfortably snug without restricting movement or breathing. As a general guide, you should be able to fit approximately two fingers underneath the collar.
Martingale & Slip Collars
Martingale and slip-style collars require a little extra attention when measuring!
In addition to your dog's regular neck measurement, measure the widest part of their head, typically around the ears.
This helps ensure that the collar can be slipped over your dog's head while still fitting appropriately around the neck.
Always refer to the individual product's sizing instructions, as different styles may fit differently.
E-Collar Straps
For E-collar straps, measure your dog's neck where the receiver will sit.
Keep in mind that the receiver adds additional length to the finished collar. The amount varies depending on the brand and model of your E-collar.
If you're unsure about sizing, contact us with your dog's neck measurement and the E-collar model you're using. We're happy to help!
Choosing the Right BioThane® Width
The width of your gear can make a difference in both comfort and appearance.
- 1/2" Width: A lightweight, narrow option commonly chosen for smaller dogs and lighter gear.
- 3/4" Width: A versatile option that works well for many medium and large dogs.
- 1" Width: A wider option that provides a more substantial feel and is popular for larger dogs.
- 1.5" Width: Our widest standard collar option, offering a bold look and broader contact area around the neck.
The ideal width depends on your dog's size, build, intended use, and personal preference. Always check the individual product listing for available widths and specifications.
Ordering for a Growing Puppy?
Puppies grow quickly, and we know you want their gear to last as long as possible!
If you're ordering for a growing pup, please let us know. Depending on the collar style, we may be able to accommodate additional adjustment room.
We generally recommend allowing extra room for future growth where the design permits, but never order a collar that is currently too loose or unsafe to wear.
Still Unsure About Sizing?
We're always happy to help!
If you're having trouble deciding between sizes or aren't sure how to measure for a specific product, reach out to our team before placing your order.
Send us your dog's measurements, the product you're interested in, and any questions you may have. We'll do our best to help you choose the right fit.
Email: contact@topdoggear.ca
You can also reach us through our website chat or Instagram!
A Quick Reminder Before Ordering
All BioThane® gear is handcrafted according to the options and measurements selected at checkout. Customers are responsible for providing accurate sizing information.
Please double-check your measurements before placing your order. If you need to make changes, contact us within 24 hours of purchasing. Changes cannot always be guaranteed once production has begun.
We want your pup to be comfortable, safe, and ready for every adventure in their Top Dog Gear!