The expression utilized to rate the quality of waves as they break down the line. Very poor shape is if the waves are closed out or if a surfer can't even work through the sections down the line. Average shape may be if the waves peel off, but has numerous sections the surfer must find their way around. Perfect shape is when the waves peel off down the line without having any sections. In addition, this is the outline and technical specs of a surfboard, and/or the actions of shaping a surfboard.