“To sum it all up: it's a good idea to lean forward and move quickly when you're caught in the rain. But careful: leaning forward increases Sh [horizontal surface]. To really stay drier, you'll need to increase your speed enough to compensate for this.”
How about #running fast w/o leaning?
A Physicist Reveals Why You Should Run in The Rain https://www.sciencealert.com/a-physicist-reveals-why-you-should-run-in-the-rain