311 Board Shorts- Size 31 Length 17-18 medium length classic SurfNyl™ boardshorts made in usa, lifetime guarantee A modern icon, subtly refined over half a century of surf and sun. Medium length. The original “Birdies” were born in 1961, when surf mom Carrie Birdwell Mann sewed the first pairs for her sons in her Southern California living room. Hoping to replace the canvas shorts popular with surfers at the time with something safer and more functional, she found inspiration in the sails of the boats docked at nearby Newport Beach. Originally working with off-the-shelf spinnaker cloth, she soon commissioned Birdwell’s signature nylon fabric, SurfNyl™️, and replicated the two-layer construction and triple seams of the most durable sails, and an American icon was born.