D-TACKS are most definitely NOT purely decorative. They're first-class reinforcements fro the garment fabric beyond the pocket mouth, where trousers often tear, even if the pocket itself does not, as it's supported by the bar-TACK. Depressing that a supposed "tailoring" retailer would be propounding such mis-information: 'D' BAR TAGS: "You will find ‘D’ bar tags on all pockets of the suit.The bar adds extra reinforcement to the pocket to prevent tears. The half-moon (the D-tag) is a purely decor