Even though the material isn't cotton and doesn't allow for much air flow, the bra itself is well-made. I did make a sizing mistake, though. I usually wear a medium in European and Canadian sizes, but because Chinese sizes are generally smaller, I ordered a large to be cautious. I am 170 cm tall and weigh 59 kg. When I tried it on, it was too tight on my chest. The bra would actually fit my daughter, who is a bit smaller. So, I've now ordered an XL for myself. Hopefully, that size will fit me better.