Does anyone make slip on cloth diaper covers? : clothdiaps
Yet another option is fleece diaper covers. I'm seeing a bunch on Etsy that are reasonably priced. During the cooler months you can simply buy fleece pants at the store and use those. I've used these in the past, but they're not my favorite. There's nothing wrong with them; it's just personal preference. If you sew, you can make your own.