How to measure your dog's head

Use the templates below to see if the Trident helmet will fit your dog. Print them all at once or try them one at a time. Please note that PDFs often auto scale to fit your paper size. You MUST make sure the templates print at 100% with NO PAGE SCALING.

For best results, cut out the templates and tape them onto cardboard to make them sturdy. Choose the best fit for each template type — W (width), L (length), S (snout). Use a tape measure for N (neck). 

All Trident Helmets include a Fit-Kit — a 10 piece set of Velcro backed spacer pads. These help snug up the fit for smaller heads. The setup can be altered later if needed. Simply change the spacer pads.

MeasureDog2.jpg
L_Image.jpg
W_Image.jpg
S_Image.jpg
N_Image.jpg

Cranial Length

L1

L2

L3

Cranial Width

W1

W2

W3

W4

Snout Width

S

Neck Circumference

N

As you can see, there are many possible combinations. Be sure to take a decent photo of each best fitting template held in position on your dogs head. These will be helpful if you require our advice when setting up your helmet for a correct fit.