Hey Moe!
The W&M's I have has a hard plastic wall on fender side, inside of the bag and rivited in place, seems pretty secure, about 1/8" plastic and lighter weight stuff on all out board wall surfaces to maintain shape.
I had been looking toward Saddleman when my neighbor said, "Hey, I have these that I took off for a different set, you want them?" Being the reasonable cheap, I mean chap that I am, I said, let me think about it... sure!
