Not gear exactly, but the Blandness Quality can help if you are building a character around not being noticed.
Also, don't forget a good hacker to clean up those pesky surveillance videos so that they can blackmail you...errr...help you out.

I've been re-reading about the matrix and AR/VR and it seems like augmented reality could also go far in disguising you at least in certain areas; so for blending in, if everyone is looking at you in AR, you'll look like whatever your decker/techno cooks up. If isn't wasn't for those pesky people that wear monocles...
I'll also toss out Con and Performance skills so that you'll fit in our be overlooked. Or flip it and go for ultra-flamboyant; "Sorry boss I didn't see any shady characters, I was watching the neon dwarf juggling mono-filament chainsaws!"