Size Guide
Collar Size Guide
Measure twice, buy once
When it comes time to get a new collar, take a few minutes to make sure you’re getting the right size and your dog will thank you!
Collars can stretch over time and sizing can vary by style and manufacturer, so even if your dog’s current collar fits and you know its size, it’s important to take a new measurement before buying a collar.
For a buckle collar, follow the measurement instructions below to measure your dog’s neck or current collar and then check our size chart to see what collar length will fit.
Martingale collars are sized differently than buckle collars, since they slide on over a dog’s head. If you plan to get a martingale collar, use the instructions and sizing chart at the bottom of this page instead.
Check your dog’s collar regularly for fit and wear.
Measuring your dog
If this is your dog’s first collar, if you need a collar in a different size, or if you have been using a martingale or slip collar, the best way to ensure a good fit is by measuring your dog directly.
Measure at the narrowest point of your dog’s neck, just as tight or loose as you would like the new collar to fit. The collar should be snug, without being so tight that it will cause discomfort or loose enough to slide over your dog’s head.
As a rule of thumb, a well-fitting collar should leave just enough room for you to slide two fingers between the collar and your dog’s neck.
Measuring your current collar
If you are satisfied with the fit of your dog’s current buckle collar, you can measure the collar itself to get a new collar that fits the same. Keep in mind that collars can stretch over time, so please do not rely on any size tag or imprint on your current collar. We recommend physically measuring your current collar with a measuring tape, if you are using the current collar for reference.
For a standard buckle collar (with holes like a belt), measure from the buckle’s center bar, where it connects to the collar, to the hole that you are currently using.
For a side-release buckle collar (with two ends that clip together), measure from the end of the female part of the buckle to the opposite end of the collar, excluding the male part of the buckle.
Collar size chart
| Length | Fit range | Length | Fit range |
| 20 cm | 15 cm to 14 cm | 8" | 6" to 8" |
| 25 cm | 14 cm to 25 cm | 10" | 8" to 10" |
| 30 cm | 25 cm to 30 cm | 12" | 10" to 12" |
| 35 cm | 27 cm to 35 cm | 14" | 11" to 14" |
| 40 cm | 33 cm to 40 cm | 16" | 13" to 16" |
| 45 cm | 30 cm to 45 cm | 18" | 14" to 18" |
| 50 cm | 40 cm to 50 cm | 20" | 16" to 20" |
| 55 cm | 45 cm to 55 cm | 22" | 18" to 22" |
| 60 cm | 50 cm to 60 cm | 24" | 20" to 24" |
| 66 cm | 55 cm to 66 cm | 26" | 22" to 26" |
| 76 cm | 65 cm to 76 cm | 30" | 26" to 30" |
| 86 cm | 76 cm to 86 cm | 34" | 30" to 34" |
a tail we could wag collar size chart
| Length | Fit range | Length | Fit range |
| Extra Small | 20 cm to 30 cm | Extra Small | 8" to 12" |
| Small | 28 cm to 38 cm | Small | 11" to 15" |
| Medium | 36 cm to 51 cm | Medium | 14" to 20" |
| Large | 46 cm to 64 cm | Large | 18" to 25" |
| Extra Large | 58 cm to 76 cm | Extra Large | 23" to 30" |
How we measure our collars
Center-bar buckle collar
Belt-style buckle collar
Side-release buckle collar
G.I. and Tuff Stuff collars
Martingale Collar Size Guide
Measuring your dog
When measuring your dog for a martingale collar, keep in mind that the collar will need to be able to slip over your dog’s head, since it doesn’t have a buckle.
First, measure the widest part of your dog’s head. Next, measure your dog’s neck as you would for a standard, buckle-style collar. Use the larger of the two measurements.
Martingale collar size chart
| Length | Fit range | Length | Fit range |
| 10" | 5.5" to 10" | 25 cm | 14 cm to 25 cm |
| 12" | 7.5" to 12" | 30 cm | 19 cm to 30 cm |
| 14" | 10" to 14" | 35 cm | 25 cm to 35 cm |
| 16" | 12" to 16" | 40 cm | 30 cm to 40 cm |
| 18" | 12" to 18" | 45 cm | 30 cm to 45 cm |
| 20" | 14" to 20" | 50 cm | 35 cm to 50 cm |
| 22" | 16" to 22" | 55 cm | 40 cm to 55 cm |
| 24" | 18" to 24" | 60 cm | 45 cm to 60 cm |
| 26" | 20" to 26" | 65 cm | 50 cm to 65 cm |
a tail we could wag martingale collar size chart
| Length | Fit range | Length | Fit range |
| Small | 28 cm to 38 cm | Small | 11" to 15" |
| Medium | 36 cm to 51 cm | Medium | 14" to 20" |
| Large | 46 cm to 64 cm | Large | 18" to 25" |
| Extra Large | 58 cm to 76 cm | Extra Large | 23" to 30" |
Belt Size Guide
How to measure your belt
- Wear the pants that you would like to wear with your new belt. If you are already wearing another belt, remove it before measuring.
- Thread a tailor’s tape or other flexible material, such as a string, that you can then measure against a yardstick, through your belt loops, as you would a belt.
- Use this measurement to determine the recommended size belt (see the "if your waist measures" column in the size charts below).
Everyday Belt
Everyday Belt size chart
| If your waist measures | Choose belt size | If your waist measures | Choose belt size |
| 26" – 30" | 28" | 66 cm – 76 cm | 28" |
| 28" – 32" | 30" | 71 cm – 81.5 cm | 30" |
| 30" – 34" | 32" | 76 cm – 86.5 cm | 32" |
| 32" – 36" | 34" | 81.5 cm – 91.5 cm | 34" |
| 34" – 38" | 36" | 86.5 cm – 96.5 cm | 36" |
| 36" – 40" | 38" | 91.5 cm – 101.5 cm | 38" |
| 38" – 42" | 40" | 96.5 cm – 106.5 cm | 40" |
| 40" – 44" | 42" | 101.5 cm – 112 cm | 42" |
| 42" – 46" | 44" | 106.5 cm – 117 cm | 44" |
| 44" – 48" | 46" | 112 cm – 122 cm | 46" |
| 46" – 50" | 48" | 117 cm – 127 cm | 48" |
How we measure our Everyday Belt
a tail we could wag belt
a tail we could wag belt size chart
| If your waist measures | Choose belt size | If your waist measures | Choose belt size |
| 28" – 30 3/4" | 28" | 71 cm – 78 cm | 28" |
| 30" – 32 3/4" | 30" | 76 cm – 83 cm | 30" |
| 32" – 34 3/4" | 32" | 81.5 cm – 88.5 cm | 32" |
| 34" – 36 3/4" | 34" | 86.5 cm – 93.5 cm | 34" |
| 36" – 38 3/4" | 36" | 91.5 cm – 98.5 cm | 36" |
| 38" – 40 3/4" | 38" | 96.5 cm – 103.5 cm | 38" |
| 40" – 42 3/4" | 40" | 101.5 cm – 108.5 cm | 40" |
| 42" – 44 3/4" | 42" | 106.5 cm – 113.5 cm | 42" |
| 44" – 46 3/4" | 44" | 112 cm – 119 cm | 44" |
| 46" – 48 3/4" | 46" | 117 cm – 124 cm | 46" |
| 48" – 50 3/4" | 48" | 122 cm – 129 cm | 48" |
How we measure our a tail we could wag belt
Hat Band Size Guide
a tail we could wag hat band size chart
| Our Size | US | Imperial | Metric |
| Small | 6 5/8 | 20 7/8" | 53 cm |
| 6 3/4 | 21 1/8" | 54 cm | |
| 6 7/8 | 21 1/2" | 55 cm | |
| 7 | 21 7/8" | 56 cm | |
| 7 1/8 | 22 1/4" | 57 cm | |
| 7 1/4 | 22 5/8" | 58 cm | |
| Large | 7 3/8 | 23" | 59 cm |
| 7 1/2 | 23 1/2" | 60 cm | |
| 7 5/8 | 23 7/8" | 61 cm | |
| 7 3/4 | 24 1/4" | 62 cm | |
| 7 7/8 | 24 5/8" | 63 cm | |
| 8 | 25" | 64 cm |
