Dog collar size guide

Find the right dog collar size

Measure your dog's neck, compare it with the chart and choose a model that fits. Here are the current measurements for Don Lorino Petit and Click.

Petit dog collar for puppies and small dogs
Petit 18 to 30 cm
Click adjustable dog collar
Click XS to L
From measurement to model

Three steps to the right collar

01 Measure the neck circumference

Measure where the collar will sit. Keep the tape close to the neck without pulling it tight.

02 Compare the size range

Your dog's measurement should fall within the stated neck range, ideally with room to adjust in both directions.

03 Check the fit

Try the collar on and check that it stays securely in place without pressing or rubbing.

How to measure your dog's neck for a collar
Measure in the right place

How to measure your dog's neck

Use a soft tape measure around the part of the neck where the collar normally sits. Measure close to the body without pulling the tape tight.

1
Let your dog stand naturally

A relaxed, natural position gives a more reliable neck measurement.

2
Measure where the collar will sit

Place the tape around the neck and make sure it is not twisted.

3
Read the neck measurement

Compare your dog's actual measurement with the ranges in the chart below.

Important: choose a size using your dog's neck circumference, rather than the collar's total length. The buckle and adjustment hardware mean these measurements are different.
Current product measurements

Petit and Click size chart

Petit is Don Lorino's lightest, slimmest collar. Click comes in four adjustable sizes, with two different widths depending on size.

Model and size Fits neck circumference Width Weight Suitable if you are looking for
Petit 18 to 30 cm 1.2 cm 17 g A lightweight collar for a puppy or small dog
Click XS 21 to 31 cm 2 cm 61 g The smallest Click size
Click S 28 to 40 cm 2 cm 63 g A narrower Click collar with a wider adjustment range
Click M 33 to 49 cm 2.5 cm 97 g A wider collar for a larger neck circumference
Click L 47 to 55 cm 2.5 cm 100 g The largest Click size

These measurements apply to Don Lorino's current Petit and Click collars. Always check the size chart on the product page before ordering.

Petit or Click

Two models for different needs

Neck circumference determines which sizes can fit. You can then choose the style, width and feel to suit your dog's proportions.

Petit dog collar in Soft Mauve
For the smallest dogs

Petit

A slim, lightweight collar with an adjustable range for puppies and smaller dogs.

Fits necks from 18 to 30 cm 1.2 cm wide Weighs approximately 17 grams
Explore Petit
Click adjustable dog collar in Soft Mauve
Four sizes

Click

An adjustable dog collar with a quick-release buckle and a choice of colours for dogs that need a larger size range.

Available in XS, S, M and L 2 or 2.5 cm wide Pair with matching leads and accessories
Explore Click
When two sizes fit

Leave room for adjustment

Click sizes overlap, allowing you to choose a fit that suits your dog's measurements, coat and proportions.

Close to the maximum measurement?

The larger size will often leave more room to adjust the collar.

Close to the minimum measurement?

The smaller size may offer better proportions, provided your dog's measurement falls comfortably within its range.

For a growing puppy

Check the fit often

A puppy's neck circumference can change quickly. Choose an adjustable collar and check regularly that it still fits comfortably and securely.

Measure the neck again as your puppy grows
Check that the collar has not become too tight
Make sure your puppy cannot back out of the collar
Change size when there is little room left to adjust
Guide for Chihuahuas and small dogs
Lightweight Petit collar for small dogs and puppies
Frequently asked questions

About sizing and fit

How do I measure my dog's neck for a collar?

Use a soft tape measure around the part of the neck where the collar will sit. Keep it close to the neck without pulling it tight, then compare the measurement with the product's stated neck range.

How tight should a dog collar be?

The collar should stay securely in place without pressing, rubbing or restricting your dog's movements. Check that your dog cannot back out of it and that the fit remains comfortable.

What is the difference between Petit and Click?

Petit is 1.2 cm wide, weighs approximately 17 grams and fits necks from 18 to 30 cm. Click comes in XS to L, has a quick-release buckle and covers a wider range of neck measurements.

Which Click size should I choose if two sizes fit?

Check where your dog's measurement falls within each range. If it is close to the upper limit of the smaller size, the larger size often leaves more room for adjustment. Also consider your dog's coat and proportions.

Should I choose a size based on breed?

No. Breed can provide a rough indication, but dogs of the same breed can have different neck measurements. Always measure your individual dog before buying.

How often should I check a puppy's collar?

Check the fit regularly throughout the growth period. Adjust the collar when needed and change size when there is little room left to adjust.

Ready with your measurement

Find a collar that fits

Choose Petit for a very small neck or explore Click in XS to L. Both ranges come in several colours with matching dog accessories.