Proof 72-Hour Merino Tee: measurements by size

87% merino wool, 13% nylon · regular fit · $98.00

See it at Proof

Measurements

SizeChest (around)Length
XS38″26½″
S40″27¼″
M42″28″
L44½″28¾″
XL47″29½″
XXL50″30½″
3XL53½″31½″

If this shirt fits you, the same fit in other tees

Find the size you wear in the Proof 72-Hour Merino Tee and read across: the size in each shirt whose chest is closest, and how it compares.

ShirtIf your M fitsIf your L fitsIf your XL fits
Allmade Unisex Tri-Blend Tee (AL2004)M 1″ snuggerL ½″ snuggerXL the same around
Asket The T-ShirtL ½″ roomierXL the same aroundXXL the same around
Bella+Canvas Unisex Heather CVC Short Sleeve Tee (3001CVC)L 1″ roomierL 1½″ snuggerXL the same around
Bella+Canvas Unisex Jersey Short Sleeve Tee (3001)L 1″ roomierL 1½″ snuggerXL the same around
Bella+Canvas Unisex Triblend Short Sleeve Tee (3413)M 2″ snuggerL ½″ snuggerXL 1″ roomier
Buck Mason Field-Spec 90s Boxy Heavy TeeXS 1″ snuggerM ½″ roomierL the same around
Buck Mason Field-Spec Cotton Heavy TeeM the same aroundL ½″ snuggerXL the same around
Buck Mason Pima Classic TeeL ¾″ roomierXL 1″ roomierXL 1½″ snugger
Buck Mason Pima Curved Hem TeeM ½″ snuggerL 1″ snuggerXL ½″ snugger
Buck Mason Slub Classic TeeL ¾″ roomierXL 1″ roomierXL 1½″ snugger
Buck Mason Slub Curved Hem TeeM ½″ snuggerL 1″ snuggerXL ½″ snugger
Buck Mason Toughknit Classic TeeM ½″ snuggerL 1″ snuggerXL ½″ snugger
Buck Mason Yuma Hemp Cotton Classic TeeM ½″ snuggerL 1″ snuggerXL ½″ snugger
Carhartt Workwear Pocket Short Sleeve T-Shirt (K87)S ¾″ snuggerM ½″ roomierM 2″ snugger
Champion Classic T-Shirt (T425)M 2″ snuggerL ½″ snuggerXL 1″ roomier
Champion Heritage Jersey T-Shirt (T105)S 2″ snuggerM ½″ snuggerL 1″ roomier
Comfort Colors Heavyweight Ring Spun Tee (1717)L 1″ roomierL 1½″ snuggerXL the same around
District Re-Tee (DT8000)L 1″ roomierL 1½″ snuggerXL 1″ snugger
District The Concert Tee (DT5000)L the same aroundXL 1½″ roomierXL 1″ snugger
District Very Important Tee (DT6000)L the same aroundXL ½″ roomierXXL 1″ roomier
Everlane The Essential Organic CrewL 1″ roomierL 1½″ snuggerXL 1″ snugger
Everlane The Essential Organic V-Neck TeeL 1″ roomierL 1½″ snuggerXL 1″ snugger
Fresh Clean Threads Crew Neck TeeL 1″ roomierL 1½″ snuggerXL the same around
Gildan DryBlend T-Shirt (8000)L 1″ roomierL 1½″ snuggerXL the same around
Gildan Heavy Cotton T-Shirt (5000)L 1″ roomierL 1½″ snuggerXL the same around
Gildan Softstyle T-Shirt (64000)L 1″ roomierL 1½″ snuggerXL the same around
Gildan Ultra Cotton T-Shirt (2000)L 1″ roomierL 1½″ snuggerXL the same around
Hanes Authentic T-Shirt (5250)L 1″ roomierL 1½″ snuggerXL the same around
Hanes Beefy-T (5180)L 1″ roomierL 1½″ snuggerXL the same around
Hanes Essential-T (5280)L 1″ roomierL 1½″ snuggerXL the same around
Hanes Perfect-T (4980)M 2″ snuggerL ½″ snuggerXL 1″ roomier
J.Crew Broken-in Pocket T-ShirtM 1¼″ snuggerL 1″ snuggerXL ½″ snugger
J.Crew Broken-in T-ShirtM 1¼″ snuggerL 1″ snuggerXL ½″ snugger
J.Crew Vintage-wash Cotton Pocket T-shirtM the same aroundL ½″ roomierXL 1″ roomier
J.Crew Wallace & Barnes 1950s-fit T-shirtL 1″ roomierL 1½″ snuggerXL 1″ snugger
Jerzees Dri-Power 50/50 T-Shirt (29M)L 1″ roomierL 1½″ snuggerXL the same around
Lady White Co. Our T-ShirtL the same aroundXL ½″ snuggernone close
Mack Weldon Heavyweight Slub T-ShirtS the same aroundM ½″ snuggerL 1″ snugger
Mack Weldon Pima Crew Neck T-ShirtL the same aroundXL ½″ snuggerXXL 1″ snugger
Mack Weldon Pima Short Sleeve HenleyL the same aroundXL ½″ snuggerXXL 1″ snugger
Mack Weldon SILVER Crew Neck T-ShirtL ¾″ snuggerXXL ½″ roomierXXL 2″ snugger
Marine Layer Signature CrewL the same aroundXL 1½″ roomierXL 1″ snugger
Next Level Cotton Tee (3600)L 1″ roomierL 1½″ snuggerXL the same around
Next Level CVC Tee (6210)L 1″ roomierL 1½″ snuggerXL the same around
Nike Core Cotton TeeL ½″ roomierXL 1¾″ roomierXL ¾″ snugger
Nike Legend Teenone closeL the same aroundXL 1¼″ roomier
Nike Team rLegend TeeM the same aroundL the same aroundnone close
Polo Ralph Lauren Classic Fit Jersey Crewneck T-ShirtM 1″ roomierM 1½″ snuggerL ½″ snugger
Polo Ralph Lauren Custom Slim Fit Jersey Crewneck T-ShirtL the same aroundXL 1″ roomierXL 1½″ snugger
Port & Company Core Blend Tee (PC55)L 1″ roomierL 1½″ snuggerXL the same around
Port & Company Core Cotton Tee (PC54)L 1″ roomierL 1½″ snuggerXL the same around
Port & Company Essential Tee (PC61)L 1″ roomierL 1½″ snuggerXL the same around
Port & Company Fan Favorite Tee (PC450)L 1″ roomierL 1½″ snuggerXL the same around
Quince Cotton Modal Crew Neck TeeL ¾″ roomierL 1¾″ snuggerXL ½″ snugger
Quince Organic Cotton Slub Crewneck TeeL ¾″ roomierL 1¾″ snuggerXL ½″ snugger
Sport-Tek PosiCharge Competitor Tee (ST350)M 1″ roomierM 1½″ snuggerL 1″ snugger
Sunspel Classic T-ShirtL the same aroundXL ½″ snuggerXXL ¾″ snugger
Taylor Stitch Organic Cotton Shop TeeM the same aroundL 1″ snuggerXL ¾″ snugger
Taylor Stitch The Heavy Bag TeeL the same aroundXL the same aroundXXL ¾″ roomier
Taylor Stitch The Organic Cotton Pocket TeeL the same aroundXL the same aroundXXL ¾″ roomier
Todd Snyder Boxy Jersey TeeXS the same aroundS ½″ snuggerM 1″ snugger
Todd Snyder Premium Jersey TeeL 1″ roomierL 1½″ snuggerXL 1″ snugger
Under Armour Athletic 2.0 Tee (1383264)M the same aroundL ½″ roomierXL 1″ roomier
Under Armour Team Tech Tee (1376842)S 1″ snuggerM ½″ snuggerL the same around
Uniqlo AIRism Cotton Crew Neck T-ShirtM the same aroundL the same aroundXL 1″ roomier
Uniqlo AIRism Cotton Oversized T-Shirt | Half-SleeveS ¾″ roomierM ½″ roomierL 1″ roomier
Uniqlo AIRism T-ShirtL ½″ snuggerXL the same aroundXXL ½″ roomier
Uniqlo Crew Neck Short-Sleeve T-ShirtS 1¼″ snuggerM 1¼″ snuggerL ¾″ snugger
Uniqlo DRY Color T-ShirtM the same aroundL the same aroundXL 1″ roomier
Uniqlo DRY Waffle Henley T-ShirtS ½″ roomierM ½″ roomierL 1″ roomier
Uniqlo DRY-EX T-ShirtM 1″ snuggerL ½″ snuggerXL the same around
Uniqlo SUPIMA Cotton T-ShirtM the same aroundL ½″ roomierXL 1″ roomier

Get your exact size in any of these

Add three shirts you own that fit well. FitCard compares their real measurements with every shirt here and tells you the one size to buy, and why, in terms of your own shirts. Free, no tape measure.

Build your FitCard

Garment measurements: the shirt itself, chest all the way around and length from shoulder to hem, from each brand's own chart or wholesale spec sheet, checked November 2026. Shirts with half or more cotton are shown as they come out of a dryer (about 2% less around and 4% shorter). Brands change their cuts, so check the shop's chart before you buy.