Men's Neoprene Neck Seals Chart

Size
Neck circumference
XS 13 1/4" - 13 3/4"
S 14 1/4" - 14 3/4"
M 15 - 15 3/4"
L 16 - 16 3/4"
XL 17 - 17 3/4"
2XL 18 - 18 3/4"