Full Face Diving Seaview Snorkel Snorkeling Mask Swimming Goggles for GoPro 1/2X
Available in 2 sizes (S/M and L/XL)
Step 1. Measure the distance between Nose bridge to bottom of the chin.
Step 2. If the distance is less than 12 cm (4.8 inches), Choose Small/Medium.
Step 3. If the distance is more than 12 cm (4.8 inches), Choose Large/XL.
Note: GoPro camera, GoPro case, and screw are not included.