Doggles Sizing Chart

Doggles Style Typical Size Dog (in pounds) Back Strap Chin Strap Length Actual Lens Size
Extra Small 1-10 5"-13" 3"-7" 1" High x 1.25" Wide
Small 9-25 12"-20" 4"-8" 1.5" High x 2" Wide
Medium 15-60 15"-25" 5"-11" 1.5" High x 2.25" Wide
Large 45 & Up 8"-30" 6"-15" 1.5" High x 2.5" Wide

How to measure your dog:
Back Strap and Frame Length: Measure the entire head circumference, across the eyes and around under the ears.
Chin Strap: Start just under one ear, under the chin, and back up to the other ear (like a helmet strap).