Sleeves for sign posts

A sign post and sleeve system comprising:

• a sign post;
• a sleeve secured to said post, the sleeve comprising:
• at least a first flat panel, a second flat panel, and a third flat panel, which first, second, and third flat panels, together, form a continuous C-channel with a long axis and a short axis, an interior surface and area, an exterior surface, and vertically oriented edges where the panels join together to form the C-channel;
• wherein adjoining panels of the C-channel are at ninety degrees to one another;
• wherein the C-channel comprises an opening in each of at least two opposing panels, through which a fastener may be passed to secure the sleeve to the post;
• wherein each panel is divided into at least a first and a second rectangular panel section, which rectangular panel sections are the same size on each panel, span an entire width of each panel, and abut along adjacent margins,
• at least an exterior area of the first rectangular panel section comprises a color;
• at least an exterior area of the second rectangular panel section a comprises a retroflective material;
• and
• wherein the sign post fits within the interior area of the C-channel;
• further comprising linear grooves along an outline of the first and second rectangular panel sections on each panel, which grooves weaken attachment of the rectangular panel sections to the sleeve and allow individual of the rectangular panel sections to be broken off of the sleeve;
• and
• wherein the retroreflective material has perforations corresponding to the rectangular sections, which perforations allow individual sections of the retroreflective material to be separated from the sleeve the when a rectangular panel section is broken off of the sleeve.