Some charts are very generic and do not match real measurements at all. Each material has advantages and disadvantages depending on season and activity. Smaller shops can be surprisingly friendly if they care about repeat customers. Sometimes I do not mind waiting longer if the price is fair and the quality is solid. Now I am more careful with impulse buys and limited time offers. I prefer simple designs that do not depend only on heavy filters in the pictures.
If anyone is interested in real user experiences, I sometimes write short notes about the shops I test.
You can find one of the pages here:
click here
Many people do not mind waiting if they understand what is going on. I also started paying attention to how websites display sizing charts for clothing. I do not trust only the star rating, I like to see detailed photos and longer comments. If a website gives a detailed guide for measurements, I feel more confident when ordering. A product that still looks good after a few months is more impressive than something only good on arrival.
Maybe this is useful for someone.