Proviz Sports Men's Reflective Waterproof Hooded Jacket 2.0

This jacket is covered with millions of tiny reflective glass beads, so if you’re cycling after dark and a car’s headlights shine on you, your jacket glows and the car can literally see you plain as day.

It also looks kinda trippy if you wear it during the day, since it reflects sunlight in sort of a ripple effect.