You can always submit your measurement after placing the order. For now, just select Customize with Made to Measure, click Add to Shopping Bag and complete order. Later on go to Account section, visit My Orders page and submit your latest measurement.
If your bare chest size measurement is 40 inches, you should select size 40 only from the drop-down.The Top chest attribute in the size chart refers to the garment chest size. It is inclusive of the required 3 to 4 inches loosening, to ensure the right fit.
If your bare chest measurement falls between 2 sizes i.e 37 inches, you should select size 38.
https://www.utsavfashion.com/product/embroidered-dupion-silk-sherwani-in-light-beige-mdw411669270Embroidered Dupion Silk Sherwani in Light Beigehttps://medias.utsavfashion.com/media/catalog/product/cache/1/small_image/295x/040ec09b1e35df139433887a97daa66f/e/m/embroidered-dupion-silk-sherwani-in-light-beige-v1-mdw41.jpg63.279USDInStock/men/men/plus/men/wedding/men/party/men/dupion silk/men/beige/men/sherwani/men/contemporary/men/reshamEmbroidered Dupion Silk Sherwani in Light Beige <ul><li> Readymade Art Dupion Silk Sherwani in Light Beige</li><li> This Collar Neck and Full Sleeve attire is Allured with Buttons and Resham Work</li><li> Available with an Art Dupion Silk Churidar in Maroon</li><li> Do note: Footwear shown in the image is for presentation purposes only. Half to one inch may vary in measurement. (Slight variation in actual color vs. image is possible)</li></ul>USDtype_new:Sherwanicolorfam:Beigefabric:Dupion SilkBeigeDupion SilkSherwani11%-20%MenReady to Ship, Within 2 days, Within 7 days, Within 10 days, Within 15 days, More than 15 DaysReadymadeWedding, PartyMenswearContemporary, Resham32, 34, 36, 38, 40, 4244, 46, 48, 50, 52