I just bought a set of lightly used SIDI Champion Rain boots off eBay. At least I think that's the model - the eBay lister didn't know which ones they were and they look like the Champion Rain boots listed on the SIDI website - although I can't find any info anywhere else online about them. Guess I'll find out if they're waterproof the next time I ride in the rain!
Anyway, they are practically new with very minor signs of wear. Wore them for the first time today and they felt great.
I don't know if it's just me, but I normally wear a 10.5 shoe or 11 in full sizes, but with this and other SIDI boots I tried on, a 10 (Euro 44) fits me better than the 11.
'92 BMW K75S
'99 BMW K1200RS - Sold (why did I do that?)
'08 Kawasaki Versys - Sold
'03 Honda VLX600 (Wifes) - Sold
'04 Triumph Speedmaster (RIP)