Tie-dyed tops = cute. What's not cute? Dingy, yellow-stained white tees that, while still technically wearable, don't exactly motivate you to get moving. Instead of throwing out your old T-shirts ...

The clip—mostly rippling back muscles, abs, and a precious little gold chain—was the result of a social-media challenge from Spider-Man ... his shirt: a custom salmon tie-dye tee bearing ...