superbike (Euro) magazine did a review after one of there riders crashed in a one piece shift suit and they said it held up perfectly, although i do not remember the model of suit or speed of accident. they said the suit is also very comfortable while riding. i have some shift gloves that are super comfy.
I tried on a shift jacket when I was window shopping for gear for christmas ideas for my parents and I really liked the way it fit. As for crash testing it...the stealership wouldnt let me drop a Repsol on the highway to test it out, so I couldn't tell you how they hold up