So, I've been playing around with C21, and thanks to the guide already here (Thanks, sircusa!), I've managed to hold my own, for the most part. However, the guide mentions buying a bag to get a larger inventory for 5,000 C$. Problem is, I can't find such a thing. Anywhere. Or even anything for that cost, or anything that looks like a bag. So, can anyone with experience with the game help me out on that score?

Well, I managed to figure out that it's been changed to a cash shop item (D, for 30 metal in the cash shop. So, in case anyone was wondering, there you go.