The big orange-and-white rain deflectors protect workers carrying laptops and phones as they move from one high-rise to another, ... “A Rain Warrior doesn’t own an umbrella.

A white umbrella. No surprise, black proved to be much more effective: All of the black umbrellas blocked at least 90 percent of UVR, with most blocking more than 95 percent.

As umbrellas go, these are not cheap. A super-early-bird offer will set you back €59 ($66), while the capsule-only option is €29 ($32). There are three designs to pick from: white, black or shiny.