Glen plaid fabrics, also known as Glenurquhart check or simply Prince of Wales check, are classic woven textiles featuring a distinctive pattern of small and large checks, created by alternating light and dark stripes that intersect to form irregular checks. The pattern often combines a subtle mix of muted tones, such as grey, black, and white, sometimes accented with an overcheck in a contrasting color like red or blue.
Traditionally woven in a twill weave, Glen plaid fabrics have a smooth, slightly textured surface and a medium weight. They are most commonly made from wool or wool blends, although modern variations may use synthetic or cotton fibers as well. The refined, tailored look of Glen plaid has made it a staple in menswear and classic suiting.