The chevron was by far the most common heraldic division the Intercollegiate Bureau of Academic Costume (IBAC) employed to divide the two or three colors in an institution’s hood, but beginning in 1895 the “double chevron” was also used quite frequently. The typical width of a normal chevron was between three and four inches, but the double chevron pattern used two chevrons of about 1½ inches in width placed approximately two inches apart so that the color of the hood lining showed between them.

Keck Graduate Institute of Applied Life Sciences was founded after the IBAC went defunct, so it is not known how the college selected its hood lining pattern. But the institute probably used two chevrons to avoid confusion with the hood lining pattern the Intercollegiate Bureau had assigned to St. Peter’s University in New Jersey (peacock blue with a white chevron). In actual practice, however, St. Peter’s uses a shade of peacock blue that is azure, not teal.