Was reminded a few days ago at dusk...Driving along a semi-rural road, I saw a cyclist, all in black about 20' away (7m). a few seconds later I saw a jogger, with just tiny bits of reflective tape about 200' away (70m). Ten times the visibility distance.

Reflective tape, patches, shoes -- anything --will help you get found. Its cheap and easy to add to your pack, gear and clothing.
(Stick-on or sew on.) Especially important for those travling on/ by the roads and for children.

teacher