I haven’t had a problem carrying it around during the winter either, regardless of the type of coat I’m wearing. Size wise, it’s more than enough for everything I need, even in the winter (+ gloves and scarf). When I don’t feel like hand carrying a bag, I wear my Kelly Sellier 25 instead. It’s a lot more limited in space and slower to get into, but you’re completely hands free like you would be with any other shoulder bag. Aside from the strap, I think one of the biggest reasons I wore my K25 more than my B25 this winter is because it is Black Epsom versus Etoupe Swift. Don’t let me dissuade you from buying a B25; I just wanted to give you the pros and cons of each, but do keep in mind how delicate the leather you’re choosing is, if you want to wear it year round.
It’s an amazing bag, it’s the most versatile size wise and it works for day or evening (to a degree).
Good luck!
Thank you so much for your detailed account! Do you feel swift needs to be babied a bit? I have wondered about durability. I only have swift in smaller clutches for occasional rather than daily use. I am not sure if a swift b can handle day to day wear.