I have three adorable kitties, but the middle one just loves to clothing left in piles as a litter box if the box isn't cleaned to his satisfaction. Thus, I made the very unpleasant discovery of finding that he'd peed on my gorgeous Swift, which thankfully was empty other than a few needles at the time, which was the issue. He won't go near it if there's stuff inside. I asked the Tom Bihn Twitter feed if Nature's Miracle would work on the bag, and Darcy very kindly offered to send me some MiraZyme to see if it would work on cat urine.
I'm happy to say it does for the most part!
Darcy sent over two packs, and I wound up using both. The first time, I used it in the bathtub, and the second I turned the bag inside out and used a smaller bucket. The first dose took care of vast majority the smell except on the inside pockets. The second dose took care of the pockets except some of the plastic on one pocket - this was where the worst of it had been. I think I'm going to use Nature's Miracle on that. Regardless, you can only smell the cat urine if you press your nose to the plastic anyhow. The rest of the bag is absolutely fine and looks just like the day I bought it two years ago. I also dipped the knitting needles that were still in the bag in the MiraZyme solution during the first go-round, and they smell fine and look great. I can still smell inside the bag a little bit because of the plastic, but the Nature's Miracle should take care of it. It's nowhere near as bad as it was, and the bag is useable again! Thanks so much for all the help, Darcy!