My wife bought these one month before our trip after her pair of 10 year old Vasques blew out. We thought the softer leather would break in quicker. She loved them and with some gore-tex gaiters they kept out all the scree, dust, and mud the mountain could throw at us. She was warm on the summit at 0 degrees (f). I bought the sturdier all leather vasques 8 months before our climb and I think they were just getting broken in by the time of the trip.