SpineAlign Size Chart

It's fully adjustable, but it's best to go one size up if you're unsure or between sizes since it can be made smaller.

SIZE WAISTLINE (CM)(INCH) WEIGHT (KG)
S 60-70 (23.62" - 27.56") 27-39
M 70-75 (27.56" - 29.53") 40-49
L 75-80 (29.53" - 31.50") 50-59
XL 80-85 (31.50" - 33.46") 60-70
XXL 85-95 (33.46" - 37.40") 69-84
XXXL 95-118 (37.40" - 46.45") 85-150