Trio!!! I have the larger black one. It fits so much. Recently, I bought a second one in cobalt blue, now I can mix them, I love that possibility.
Went to Europe for 2 months last summer. Brought 5 bags with me (Trio, Goyard tote, Birkin, chanel boy and a YSL clutch). Love my Birkin but it got heavy. Never used the boy at all, the YSL clutch only a couple of times in the evening, but 85% of the time, I used the trio. Went with everything I wore, light to travel but large to fit a lot. Also when it rained, I was able to fit inside my jacket. It's a winner, can't wait to buy a third color.