DetailsCandyGrind Board Shorts Size Chart While the 309 OG Athletic Fit gives a nod to the past, these board shorts are built for the future. Their classic silhouette blends an athletic fit with an above-the-knee cut. An adjustable waist, no-slip drawstrings, and four-way stretch fabric match your moves. And when it’s time to step out on the town, slip your keys and cash in the Velcro back pocket. Drop into something different with the 309 OG Athletic Fit.