I have both and I am a mom. I only use my Evelyn when I have to carry a lot of kids belongings on my purse as I don’t use backpacks or baby bags. The Halzan strap is too thin for me to use it cross body. Since you are familiar with Chanel, I will say that Halzan 31 is a little bit larger than Chanel boy medium and accommodates more but again due to the thin strap is not a cross body bag for me.
Good luck deciding.
Good luck deciding.