Outlast the inclement weather with style and comfort in this Callaway premium mid-layer pullover. The jacket features Outlast technology, which proactively manages the build up of heat and moisture to keep you cool in warmer weather and warm in cold weather, helping you stay comfortable day and night. Callaway's Opti-Temp retains and releases body heat to ensure you always feel comfortable, Opti-Dri moisture wicking technology pulls sweat away from your body so you can cool down in the heat, Opti-Stretch allows you to attack the green by providing your arms the freedom to produce a fluid swing and Opti-Shield gives your skin superior protection against the sun's UV rays.