Size Help and Product Measurements

James Perse

V-Neck Cotton-Jersey T-Shirt


  • Size 1 = S, 2 = M, 3 = L, 4 = XL and 5 = XXL
  • Fits true to size. Take your normal size
  • Regular cut, designed for a more comfortable fit
  • Model wears a 2
  • Model measures: chest 39"/ 99cm, height 6'1"/ 185cm

Size Conversion Chart

Use this to convert between standard size formats

Number size1 2 3 4 5
European (EU)46 48 50 52 54
French (FR)46 48 50 52 54
Italian (IT)46 48 50 52 54
UK/US Chest36 38 40 42 44
UK/US Waist30 32 34 36 38

Product Measurements

Inches  |  Centimetres

All items are individually measured by the MR PORTER size and fit team.

Product Measurements
  • Compare these product measurements to a similar garment you already own
  • Take all measurements from the outside, with the garment lying flat.
SizeBack LengthChestSleeve Length

Measuring Guide

A step by step guide on how our measurements are taken

  • Sleeve Length
  • Chest Circumference
  • Back Length
T-Shirt sleeve length

Sleeve Length:

Measure from the centre of the collar to the shoulder seam, then measure from the shoulder seam to the end of the sleeve and combine these measurements

T-Shirt chest circumference

Chest Circumference:

Lay the garment flat and double the measurement between the lowest point of the arm seams

T-Shirt back length

Back Length:

The length at the centre back, from the base of the collar to the hem

Still Not Sure About Your Perfect Size And Fit?


Our Style Advisors can provide detailed information for any of our products:

or call us 24 hours a day, seven days a week,

US: +1 877 5353 677

Returns or exchanges:

Please try items in the comfort of your own home. If they are not right for you, we'll
happily collect them for free from your home or office.