Vertx outerwear pieces are grounded in technology, function and contemporary designs making them the optimal choice for the Prepared Professional™. Most jackets include VaporCore™, a 37.5® Technology, which actively works to regulate your core body temperature and dries 5x faster than traditional fabrics. This active regulation allows you to stay comfortable in a variety of environments and allows you to perform better, longer. This technology prevents the "clammy", humid feeling that most waterproof and softshell jackets create.