Nothing does more to dictate a suit’s character than the lapel. But with so many varieties to choose from it can be challenging to know which style is right for you. In this GOTstyle MANual we offer you the beginners guide to lapels as we discuss the three basic and most common forms of lapels: notched, peaked and shawl.
Selvedge (n,): or “self-edge” is the edge of woven fabric finished to prevent unraveling which is achieved through a tighter, more dense weave.
Selvedge denim refers to a unique type of selvage that is made by means of using one continuous cross-yarn (the weft), which is passed back and forth through the vertical warp beams. This is traditionally finished at both edges with a contrasting warp (most commonly red); that is why this type of denim is sometimes referred to as “red selvedge.” This method of weaving the selvage is possible only when using a shuttle loom.
Shuttle looms weave a narrower 30-inch fabric, which is on average half the width of modern shuttleless Sulzer looms. Consequently a longer piece of fabric is required to make a pair of jeans from selvedge denim (approximately three yards). – Wikipedia