STASHLOGIX SMELL CONTROL BAG with Combination Lock Smell Free Storage Bag: The Silverton (Medium-Black)
https://a.co/d/8izBMEO
I use this one. It works VERY well. They make it in a smaller size as well. Hard case smell proof with customizable/removable dividers inside.
I dont know how small you’re looking for, but there are a bunch of them on amazon.
This all day every day. I bought the large Silverton off a recommendation in a thread earlier this year and ended up getting the RiNo, a couple Highlands, and a couple Alma bags to store most the rest of my stuff. They work extremely well and are high quality. The zippers are beasts to use at first (lots of resistance) but they say thats normal for the heavy duty zippers they use and I can attest they get much easier to move after a couple weeks.
I only had a smell issue twice with the Silverton. The first was because I left an inch gap unzipped with non-airtight containers for a day and the second was because the carbon pads needed a refresh. After 5-10 minutes blasting them with a hair dryer it was back to no smell.
The regular ball 8oz Mason jars also fit perfectly for jar height on the Silverton bags, btw... I ended up getting round black label stickers and some chalk pens which I use to label and color code (red = sativa, green = hybrid, blue = indica) since you can only see the tops and it has been a very happy setup for me.