Both the bomber and mythic posted above were new and have relief zippers. unlike NRS and the Aegius they used the carry, both are also breathable. For budget suits, they appear to be alright. you don't have any color choice, but that's kind of to be expected at that price point.Save an extra couple hundred bucks and watch NRS for sales. It's the type of garment that is worth buying new - and get the relief zipper, you'll be glad you did!
I swim in my NRS suit a lot and stay very dry. I've drooled over Kokatat for ever, but dry is dry and $500 on sale isn't uncommon for NRS.