The term "end-on-end" comes from the more literal French translation, "fil-a-fil" or "thread-to-thread." Basically, it's a broadcloth weave that alternates light and dark threads—in this case, violet and white, for a very subtle heathered look. This is a very light, slightly translucent casual fabric whose white threads give it a softer hue than its solid counterparts. Nicely wearable in humid or summer climates, the Violet Dean End-on-End is extremely breathable under a suit or jacket, or on its own. Because it's so light, it's probably going to need a little ironing time before it goes for a spin.