Need sizing advice

Looking to grab a pair of the Queens Crest Loafers to wear this holiday season. What has your experience been with sizing on these?

The description says fit is TTS but I’m doubtful about that. I am a US 9.5 on the wider side. I own several shoes and loafers from other brands and have sized down to EU 41 for those. Should I size down and stick to my EU size? Thanks in advance!