The Alpinestars Web Gore-Tex Boots are the first riding boots I have ever purchased specifically for riding my motorcycle, and based on my last ride, these are the only boots I will need. I just completed the IBA (Iron Butt Association) Great Lakes GOLD ride - a ride around all 5 Great Lakes in under 50 hours, logged 2569 miles on the odometer. 1) As to breathe-ability, my feet were in these boots for 50+ hours straight, I did not remove them for the entire trip. I typically have "sweaty" feet, but when I got home and removed these boots, my socks were as dry as when I put them on. 2) I encountered rain just north of Grand Marais, MN and rode in rain/mist all the way to Toronto, ON - about 900+ miles and 17+ hours. More heavy rain just west of Cleveland to about 40 miles east of Chicago. And more rain from north of Tomah, WI to the Twin Cities, MN. I always wear chaps and had rain pants over the chaps, so the boots were exposed only from the ankle down, but my feet stayed bone dry through 1300+ miles of rain. My ride is an '84 Honda Magna V30, so my feet are out in the open, not hiding behind a fairing. 3) I marked the boot as "Fits Moderately Big" because I normally wear a US size 10, and these boot did not come in a 1/2 European size... my choice was a 44 (9 1/2 US) or a 45 (10 1/2 US). The 44's were a little small so I went with the 45's and wear a couple pairs of socks.
I have had the boots only for about 3 weeks, but if they continue to perform the way they did on my Great Lakes GOLD ride, and if I ever wear these boots out, my first choice will be to replace them with the same make/model, if they are still being made.