MENS
S 36"(18" ARMPIT TO ARMPIT)
M 40"(20" ARMPIT TO ARMPIT)
L 44"(22" ARMPIT TO ARMPIT)
XL 48"(24" ARMPIT TO ARMPIT)
XXL 52"(26" ARMPIT TO ARMPIT)
WOMENS
S(8) 32" (16" ARMPIT TO ARMPIT)
M(10) 34" (17" ARMPIT TO ARMPIT)
L(12) 36" (18" ARMPIT TO ARMPIT)
XL(14) 38" (19" ARMPIT TO ARMPIT)
XXL(16) 40" (20" ARMPIT TO ARMPIT)