Kuul Thread utilizes for its dress shirts, PCM (Phase Change Materials) fabric that absorbs, stores and releases heat for optimal thermal comfort. This technology gives the ability to continually regulate skin’s micro climate. As the skin gets hot, the heat is absorbed, and as it cools, that heat is released. Our dress shirts will proactively manage heat while controlling the production of moisture (sweat) before it begins. This is not your typical wicking shirt which traps heat and creates discomfort. Our dress shirts will minimize sweat and balance skin temperature to create comfort.