Wild Yet Genius: Japan’s Most Unusual Inventions

15. Shirt with Muscle

What it is: A padded tee that fakes a gym-honed torso Invented: 2016 Average Price: $179

The Danrich Muscle Shirt hides six discreet foam pads inside breathable polyester and polyurethane fabric.

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Melna Ibach's Muscle Shirt on Pinterest

Slip it on for instant definition—no dumbbells required.