It depends on the look you're going for. An 18" chain sits right at the collarbone, clean and minimal. A 20" chain falls just below, which is the most popular length for everyday wear. A 22" chain hits mid-chest, while a 24" chain sits lower and works well for layering or wearing over a t-shirt. Our collection is available in 18", 20", 22", and 24" depending on the style.