Unfortunately, I am extremely disappointed by the long-term quality. I purchased two of these vests and both well-worn one or two dozen times, and washed according frequently.
Before long, the seams began with two copies to solve at the hem (see uploaded).
Even worse, but I find the extreme tendency to discoloration and yellowing. To a certain extent this is indeed an unavoidable phenomenon in white cotton, but as strong as in these vests I've never experienced. Also bleaching agents can no longer improve the appearance.