The SD is a high-performance surfboard that was born out of a collaboration with professional surfer Dane Reynolds. Originally created for Stab's "Shapers" series, the SD was built on the foundation of a modified Yes Thanks model. It features a smooth curve that accelerates towards the tail, a low rocker, hard edges, and a pinched deck. The board has a deep single concave that zeroed out under the rear fin and finished with a slight vee in the tail. These features provide the SD with exceptional speed and drive, making it an ideal choice for surfers who demand high performance from their equipment.

The SD has undergone some tweaks since its creation, with a bit of added rocker to improve its turning ability. It comes in Standard, Pro, and Grom dimensions, with the Pro offering a leaner profile and slightly less volume. Despite its origins dating back to 2016, the SD remains one of the most popular designs from Rusty Surfboards. If you're looking for a board that can handle critical waves and deliver solid authority and speed, the SD is a reliable choice.