Brine Helmets

Model Size Head Circumference
ST2 XS 18 7/8" - 19 5/8"
S 19 5/8" - 21 1/8"
M 21 1/8" - 23"
Triumph S/M 20 1/8" - 22 1/4"
L/XL 22 1/4" - 23 1/2"