OP...I had to go to Telmex today so I looked in the two dive shops across the street. ProDive said they were out of them at the moment (they had a mesh bag for about $75 US and a smaller regulator bag for travel). Studio Blue had several bags; the type you probably want was a hefty $180 US or thereabouts. I also stopped in Chedraui and looked in both their sporting area and luggage. All I could see were suitcases and large Rubbermaid-type totes. Along my way to Chedraui, I passed a store just south of the square where they sell all the trinkets. One store ...Pirata-something-or-other had suitcases and a large sporting goods type of bag in the window.