It looks like it works for more casual looks but goes perfectly with that dressy outfit as well! (lifestyle-tale.com)
I have medium size hoops and have worn them both to events as well as more casual looks like, today's shorts outfit. (sydnestyle.com)
Although jeans are generally worn in more casual looks, you can easily achieve a smart casual outfit as long as you pick the right things to pair it with. (theidleman.com)