User of 517's since 1992. My first Solano's pair bought in 1997 (the year my wife and I saw Michael Martin Murphey at the Shuler Theater) and one pair a year since then, interrupted by the pandemia. This has been my first one bought online (it came fast).
It's rigid, it's blue, it does transfer a little to your underwear (as it should be and has been since the world exists!), it is true to size and it is the real deal, like Solano's is.