Measurements are in inches and refer to body size for all brands. 
For best results, measurements should be taken over your undergarments.


NECK:  Measure at the base or the fullest part of the neck.
CHEST/BUST:  Measure around the fullest part, just under arms and across shoulder blades.
WAIST:  Measure loosely around waist at the height you prefer to wear waistband.
HIPS:  Stand, feet together, and measure around the largest circumference at hips.
ARMS (SLEEVE LENGTH):  With elbow bent, measure from center (back) of neck to elbows and down to wrist.
BODY LENGTH:  Measure from the highest point of the shoulder to the lower hip.
Threadfellows Sizing

COLUMBIA SIZING

MEN'S WOMEN'S
  Chest Waist Sleeve Length   Bust Waist Hips
S 35-38" 29-32" 33" XS (2) 32-34" 24-26" 34-36"
M 38-41" 32-35" 34" S (4-6) 34-35" 27.5-28.5" 36.5-37.5"
L 42-45" 36-39" 35" M (8-10) 36-37.5" 29.5-30.5" 38.5-40"
XL 46-49" 40-43" 36" L (12-14) 39-40.5" 32-33.5" 41.5-43"
2XL 50-53" 44-47" 37" XL (16-18) 42-44.5" 35.5-37.5" 45-47"
3XL 54-57" 48-51" 37" 1XL (16W-18W) 43-45" 36-38" 45-47"
LT 42-45" 36-39" 37" 2XL (20W-22W) 47-49" 40-42" 49-51"
XLT 46-49" 40-43" 38" 3XL (24W-26W) 51-53" 44-46" 53-55"
2XLT 50-53" 44-47" 39"

JOHNNIE-O SIZING

MEN'S
  Chest Sleeves Waist Neck
S 38-40" 32-33" 28-32" 14-14.5"
M 40-42" 33-34" 32-36" 15-15.5"
L 42-44" 34-35" 36-40" 16-16.5"
XL 44-46" 35-36" 40-44" 17-17.5"
XXL 46-48" 36-37" 44-48" 18-18.5"

LACOSTE SIZING

MEN'S KNITS WOMEN'S KNITS
  Chest Sleeve Neck   Bust Below Natural Waist
M (EUR 4) 39-40" 24.4" 15.5-16" XS (4, EUR 36) 33-34" 25-26"
L (EUR 5) 40.5-41.5" 24.8" 16-16.5" S (6, EUR 38) 34.5-35.5" 26.5-27.5"
XL (EUR 6) 42-43" 25.2" 16-17" M (8, EUR 40) 36-37" 28-29"
2XL (EUR 7) 43.5-44.5" 25.6" 17-17.5" L (10, EUR 42) 37.5-38.5" 29.5-30.5"
3XL (EUR 8) 45.5-46.5" 26" 17.5-18" XL (12, EUR 44) 39-40" 31-32"
4XL (EUR 9) 47-48" 26.4" 18-18.5" 2XL (14, EUR 46) 40.5-41.5" 33-34"

PATAGONIA SIZING

MEN'S WOMEN'S
  Chest Sleeves Waist Neck   Chest Waist Hips
XXS 31-33" 31" 26" 13.5-14" XS 32-33" 25.5-26.5" 34.5-35.5"
XS 34-35" 32" 28" 14-14.5" S 34-35" 27.5-28.5" 36.5-37.5"
S 35-37" 33" 29-30" 15-15.5" M 36-37" 29.5-30.5" 38.5-39.5"
M 38-40" 34" 31-33" 15.5-16" L 38.5-40" 32.5-33.5" 41-42.5"
L 42-44" 35" 34-36" 16.5-17" XL 42" 35.5" 44.5"
XL 46-48" 36" 38-40" 17-17.5" HATS
XXL 50-52" 37" 42-44" 17.5-18"   One Size
XXXL 54-56" 38" 46-48" 18.5"   21.5-23.5

TRAVISMATHEW SIZING

MEN'S WOMEN'S
  Chest   Bust Waist Hip
S 34-36" XS 33-34" 31-32" 35-36"
M 37-39" S 35-36" 33-34" 37-38"
L 40-42" M 37-39" 35-37" 39-41"
XL 43-45" L 40-42" 38-40" 42-44"
2XL 46-48" XL 43-44" 41-42" 45-46"
3XL 49-50"