Award-winning musician and singer Kenny Chesney joined with Costa this spring to produce a line of limited-edition signature sunglasses. Proceeds benefit the Coastal Conservation Association. Chesney selected five Costa styles — Hammerhead, Caballito, Rincon, Howler and Little Harbor — for his line. Each features hand-drawn artwork with Chesney’s signature etched inside the sunglass arms in a style reminiscent of scrimshaw. Available for a limited time and in several frame colors and lenses, the glasses cost $149 to $169. Find them at costadelmar.com or at upcoming stops for Chesney’s Goin’ Coastal concert tour (www.kennychesney.com).