I’ve had similar issues with cosplay pieces not fitting right, even when I double-checked the size charts. One time, I ordered shoes for a character I was cosplaying, and they didn’t fit at all, despite having great reviews. I ended up getting a pair from this Cosplay Store I found online, Abracadabra NYC, and they were perfect! They had really detailed size info, and I was able to chat with their customer service to make sure I got the right fit. If you’re looking to avoid the stress of returns, I’d recommend reaching out to stores that offer good customer support and reviews before ordering.