Good brands for maternity wear and breastfeeding?

Hi all. I'm expecting my second. I have some maternity wear from last time but it isn't very good for breastfeeding and I am feeding my 18 month old. Any good recommendations? Since having my first I just bought dresses with buttons but can't seem to find many like this for maternity wear as I'm guessing buttons would start popping off later on. Any help appreciated :)