X-Small - Best fit if you measure 28" around. - Small - Best fit if you measure 30" around
Medium - Best fit if you measure 32" around, - Large - Best fit if you measure 34" around
X-Large - Best fit if you measure 36" around, - 1X - Best fit if you measure 38" around
2X - Best fit if you measure 40" around, - 3X - Best fit if you measure 32" around
4X - Best fit if you measure 45" around, 5X - Best fit if you measure 49" around, - 6X - Best fit if you measure 53" around