i have not posted here in a while. how is everybody doing? anyway, i bought these armadillo specialized tires for my bike about a year & a half ago. so far no flats & i rode over so much glass it's not funny! just last week i had a piece of sharp glass lodged in the outer rubber tread of the tire & i was riding on it for a while & it didn't go through! god l love these tires! i highly recommend them for people who ride in flat prone areas with lots of debris..