Stay cool while supporting your Philadelphia Union with this New Era 9SEVENTY COOLERA Stretch-Snap Adjustable Hat. The 9SEVENTY provides a modern adjustable fit and versatile style with its structured crown, semi-curved visor and performance stretch sweatband. To top it all off, this Philadelphia Union hat features COOLERA® technology that wicks away sweat and MICROERA™ technology that acts as an anti-microbial to reduce odor.