This is a nice vest. Seems to be well made. It has a nice shape and does stretch as advertised. I measured myself, and (per the chart), I was 1” smaller in the bust than the max for an XL. I normally wear a L or XL, so I purchased the XL. I Tried it on with a thin, long sleeved moisture wicking shirt. It did stretch; however, it was very tight, and I would not have been able to put a thicker shirt under it. Returned it and ordered the XXL. I will try it out on my bike and then create another review on the new purchase. Overall, great vest. Gave it a 4 because they need to revise their sizing.
Rating: [4 of 5 Stars!]