When I got these shoes, I was surprised by how light they were. As I read on, they're made from recycled milk jugs, etc.  I'm always happy to save the planet.  When I put them on, I couldn't believe how soft and flexible they are. There was no break-in period necessary. I was worried as I have a bit of a bunion, but these shoes are flexible enough that it isn't a problem and there was no blister. Also, the back of the heel is soft, so you don't have that "tough to get in" issue when you put them on, even if you don't unlace them all the way. :).  I thoroughly enjoy these shoes. They fit well, have good arch support and a bottom that provides you traction. They don't make your feet hot, which is a problem with some plastic shoes.  I've only had them a few days, so I don't know about long term wearability, but thus far, they've been great!  I recommend them and would definitely buy them again. Also, they run true to size, which helps eliminate the guess work on buying shoes without seeing them in person.