I never should have doubted the ability of the Mythical Society Drawstring Bag to perform beyond expectations. It may look a little small and feel a little on the light side, but it is tough and can easily handle being stuffed with all of your Mythical swag.
It's a nice bag. the strings can be difficult to tighten, but other than that it's fun to wear around. People ask about the Society when they see the logo.