Double Diamond

HBT Vest


USD 331.87 (Tax Free)


A turn of the century inspired three-piece suit from the McCoy's Double Diamond range. Custom produced outer fabric constructed of a soft durable herringbone patterned twill with a linen mix. 

The attention to detail is, as always second to none, giving a wholly authentic finished product. 

*Blazer and Trousers also available* 

Product Code: MJ15132_NAVY


  • Outer: 100% Herringbone Wool x Linen 
  • Lining: Moleskin Cotton 
  • 6 Button fastening 
  • Adjuster belt 
  • Made in Japan 

Double Diamond

Founded in the late nineteenth century, and later absorbed by the Joe McCoy company, Double Diamond produced tailored workwear for the burgeoning class of urban labourers. Their garments followed the patterns of classical suiting and utilised traditional materials like wool and linen, as prewar workers canted to prize formal conventions over casual fashion.

Form the turn of the century, millions of immigrants journeyed across the Atlantic to start a new life on the new continent. Their need for workwear brought Double Diamond into existence, while the brands garments marked the sewing together of old world tradition and new world Ingenuity.

How to measure

Fits true to size, buy your usual chest size.

A - Chest - Armpit to armpit seam
B - Sleeve - Shoulder seam to cuff
C - Length - Hem to collar seam
D - Shoulder - Between the shoulder seams

More Information
38 40 42 44
A 20 50.8 21 53.34 22 55.88 23 58.42
B - - - - - - - -
C 23.25 59.05 24.25 61.59 25 63.5 25.25 64.13
D 14.75 37.46 15.25 38.73 16 40.64 16.5 41.91

Swipe left to see more sizes


Free DHL Air Express Shipping is available on orders valued over $150.

Please be advised that there are zero import fees up to the value of $800 for the USA

We offer the following delivery options for orders placed Monday to Friday. Orders placed over the weekend will be processed on the next working day.

DHL Air Express Service (1-3 Days) - $28

DHL on Demand is available in the USA. For more information please visit our Delivery Page.


We offer a 14 day no hassle returns policy, whereby you can return your purchase for a refund or credit note. Please see our returns section for further details

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For more information please visit our Returns Page.