Hi ladies,
I currently own both the medium and mini iconics. Though I never wore it this way, the medium can definitely go crossbody comfortably--for reference, I am 5'4". The mini definitely looks tiny, but it holds a deceptively decent amount of items. Originally, I bought the iconic medium in calfskin thinking it would be the be-all, end-all for me, but I am now in the process of selling it because I actually find it to be too large and too heavy for my needs. (The medium in nappa probably weighs less than it does in calfskin, however.)
I have since purchased the mini in nappa leather and it is PERFECT. It's lightweight and easily carries my essentials with both sides left open: soft sunglasses pouch, LV 4-key holder, LV key pouch as a wallet, iPhone 13 Pro Max, iPhone XR, envelope card case, small cosmetics pouch, travel pack of tissues. I will say that if you plan on clasping the compartments on the mini, it may reduce your capacity a bit depending on what you carry. Otherwise, it's the perfect day-to-night bag. I hope this helps!