Fit
Size guide
Two minutes with a soft tape saves you a return. You need two numbers: across the head, and around the neck.
Across the head
Measure straight across the top of the head, between the ears. Do not include the ears or any fluff — you want the head itself. This decides the crown size.
Around the neck
Measure around the neck just below the ears. This sets the chinstrap, which is the part actually keeping the hat on.
Check both
Compare both numbers to the chart. If they land in different sizes, go with the larger — the straps adjust down further than most.

Size chart
| Size | Head (between ears) | Neck | Typical breeds |
|---|---|---|---|
| S | 3.5–5 in / 9–13 cm | 8–14 in / 20–36 cm | Chihuahua, toy poodle, small terrier, puppies |
| M | 5–6.5 in / 13–17 cm | 14–18 in / 36–46 cm | Frenchie, beagle, cocker spaniel, pocket bully |
| L | 6.5–8 in / 17–20 cm | 18–24 in / 46–61 cm | Labrador, shepherd, standard bully, rottweiler |
Measurements are a guide. Head shape varies a lot between breeds, which is exactly why the ear straps and chinstrap adjust.
Ears through first
Gently pull each ear through the straps on the sides. Adjust them up, down, forward or back so nothing presses on the ears.
Two fingers at the chin
Fasten the chinstrap under the chin with about two fingers of space. Snug, never tight.
Lock the toggles
Slide the side toggles up to hold the fit. Recheck it the first few times your dog wears it.
Still not sure?
Send us your dog’s two measurements and breed and we will tell you which size to order. If we get it wrong, the return is on us.
Ask us