Well first, shoot! Secondly, it’s likely because it was a Limited Edition color. We order those in smaller quantities, and once they’re sold out, they’re gone! Sometimes we’ll restock a super popular color, so there’s a tiny chance it will come back. But we also launch new colors all the time—you might find something you’ll like even more!
Our Core Colors (Black, Ceil Blue, Graphite and Navy) are replenished/restocked frequently, so have no fear there—those should almost always be available.