I created a style guide for a small company I was a part of called Epix Snowboards. There were only three of us doing everything so there was a lot of hats being warn at different times and this helped with the consistency of our brand. Below are a few graphics from it.
Logo 1: Circle, Secondary Logo: Classic 'E' and Brand Icon: EPIX Mountian
Primary Label: 2.5" x 2.5" - Shirts, Sweatshirts, Jackets, & Button-Downs
Secondary Label: 1" x 2.4" - Inside of Hats and Button-Downs
Cuff Detail: The stitch and fabric cut is shaped like EPIX Mountain.
Pocket Detail: The cut of the pocket is shaped like the tips of our boards.
Board Lock-up: 1" x 4"
Board Lock-up Positions: Nose, Tail & Center (avoiding stomp pad area)
Board Flex, camber, stringer & tip placement.