jetting
n.— «They took the extra time and tricky effort to make sure everything matched perfectly on the stripes or checks. That meant, even down to the tiny strip of cloth that hinges on the pocket flap i.e. the “jetting.”» —“How to recognise anderson & sheppard: check the pockets” by Thomas Mahon English Cut (London, England) Sept. 17, 2005. (source: Double-Tongued Dictionary)