NRS Men's Sizing
Size Height Weight Chest Waist
2XS 4'9"-5'1" 80-100 lbs 24"-48" 23"-26"
XS 4'11"-5'3" 90-125 lbs 28"-32" 26"-29"
S 5'2"-5'6" 115-140 lbs 32"-36" 28"-31"
M 5'5"-5'8" 130-165 lbs 36"-40" 30"-33"
L 5'7"-6'0" 250-195 lbs 39"-43" 32"-35"
XL 5'10"-6'2" 185-225 lbs 42"-46" 34"-37"
2XL 6'1"-6'4" 215-245 lbs 46"-50" 36"-42"
3XL 6'3"-6'5" 230-255 lbs 49"-52" 39"-44"
4XL 6'4"-6'6" 245+ lbs 51"-53" 43"-46"