Osmo 太陽帽

Took this on a week-long camping trip and the solar panel kept my phone charged even on cloudy days. The built-in battery pack held enough power for two full charges, which was perfect.

I was a bit skeptical about the fit, but the standard option slipped on perfectly and stays comfortable even after a few hours in the sun. The material breathes well enough that my head doesn't get sweaty.

The sizing runs exactly as listed, so the Standard fit was spot-on for me right out of the box. I've worn it daily for two weeks now, and the material still looks brand new after a few accidental crushes in my bag.