Fog City Turtleneck

From the Holiday 1987 catalogue: “Our fair-weather cotton turtleneck can metamorphose almost as fast as the summer weather shifts in our famous hometown. Suggested for resourceful residents, and would-be visitors alike, the convertible turtle buttons up snug against July’s changeable westerlies and wily summer fogs, and unbuttons to admit warm breezes when summer finally comes (early October). Medium weight cotton knit packs compactly while bound for more sensible destinations (anywhere summer acts like summer).”