Earl Reedwrote a review of Silca Seat Roll Grande Americano on June 3, 2018
Familiarity: I've used it several times
It's a nicely made bag, but it won't stay in place on bumpy roads. I was encouraged to try this for my gravel bike. It does fine on pavement, but once I hit the gravel I'll end up stopping to re-attach it. It seems the strap is in the wrong place maybe?
I've watched the video, etc., but it just doesn't work for me.
I wouldn't buy it again.