A clear inflatable umbrella. It doesn't hurt to bump into and inflates with a bicycle pump located inside the handle.

One thing though, isn't the mushroom like top more prone to tipping raindrops onto your shoulder if it pivots from the handlebar?

No wait--because it's clear, you're supposed to wear it around your head and look through it!

By turning the handle backwards, the umbrella is deflated. The three high-output LEDs illuminate decorative markings on the vinyl make it more charming.
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