Got these in yesterday - the shirt is very "A Night at the Roxbury" looking in white - I can imagine that silver is even louder than white. It's far more durable than I expected it to be, sort of like a lightweight mesh jacket without armor and even has light padding on the elbows and shoulders. Not sure I'd wear it alone, wouldn't call it totally crashworthy but maybe with a set of MX pads underneath.
This is a mesh undersuit that should be perfect for hot trackdays - I tried it one last night and my daughter walked into the room and said "Wow daddy, that's your leotard?" - we all laughed, "Yes honey - daddy's leotard."