Yoenis Cespedes' trademark neon arm sleeve might actually be an invisibility cloak

We've long wondered about the origins and purpose of Yoenis Cespedes' brilliant canary-yellow arm sleeve. 

Is it just something that he feels comfortable in? 

Did he wear it so he could look like a parakeet as he jokingly (or perhaps not) said? 

Is it a beacon, so that aliens tuning in to the game from the ancient lakes on Mars can see him? 

That's all not true. For this is clearly Harry Potter's Cloak of Invisbility wrapped around his arm as it disappeared from sight during the Mets' 3-1 win against the Dodgers in Game 1 of the NLDS on Friday. 

That's right, the cloak which has been passed down from literal death (which Cespedes is not afraid of) all the way down to James Potter and his son, Harry, has now passed into baseball's exciting, rocket-arm-toting dinger-king. 

I mean, can you think of another explanation? And if you say it's because of chroma key, then all of the joy must have seeped out of your heart a long time ago.