Founded by Carrie Birdwell Mann in 1961, the company manufactures and sells customized heavy-duty swimsuits. The company's motto is "We don't build 1000 things. We build one thing 1000 ways."

The swimsuits themselves, which resemble board shorts, On all of the trunks, there is a 2 square inch (50 mm) logo, of a stylized anthropomorphic surfboard, wearing, of course, Birdwell Beach Britches, nicknamed "Birdie". These shorts are known and favored among surfers, lifeguards and paddleboarders.