How To Measure
8-10 inches > Toddler
9 -11 inches > X-Small (Toddler/Child) (Most Kids Size)
11-13 inches > Small (Child/Teen)
13-15 inches > Medium (Adult)
15-17 inches > (Adult)
1. Use a cloth ruler, shoestring, yarn, or any flexible material.
2. Put the string up to one side of the flange/hole bring around the neck to the other flange/hole.
3. Take the string and mark it or tape on the string where the flange/hole is.
4. Take the string lay it down and measure with ruler or measure tape. This will give you your measurements.