I have a minaal daybag. https://www.minaal.com/collections/your-future-gear/products...

Laptop pocket, which fits my 15" macbook and an ipad no problem. Also is roomy enough for a small drybag for the gym.

Its accessory infrastructure is nice and thought out well. has a handle and a strap so you can carry it as a briefcase or a messenger bag, and the backpack straps zip out of the way when you want to do that

Also, customer service is top notch.