The bag top flap has both a zipper and buckle. the front pockets do not have zippers and are closed by the top flap and the buckle. I keep cables and small filters in those pockets for fast access. Hope this helps.
Mary, the bag has a double fobbed zipper that goes around the top on three sides, and then the flap totally conceals and seals the zipper with the quick-connect just tight enough to cover the pouches on front. I love this bag and use it to carry two fully lensed cameras. Hope you like it as well.