The Roark Chiller Sunset Men's Boardshorts. The Chiller Series is our collection of boardshorts that were built to embrace the good vibes that come with a day spent by the water. With side slit pockets and casual styling, the Chiller's convenience makes everyday 72 degrees and sunny. Constructed from a recycled polyester/hemp blend for sustainability. The Chiller Sunset is a nostalgic ode to the muted colors of a CDT sunset.