Here's a high quality photo of the uniform on Garrard from the event. You can also see how the light is affecting his helmet.
I'm really starting to wonder how much of an effect these uniforms will have on the players due to them being 30% lighter than the other NFL uniforms. Fabric is generally pretty light so I don't think it would help their speed much(if at all). Maybe they'll just be less cumbersome and allow for more flexibility? I don't know. It's something to look forward to.