I have owned a pair of the original Newport sandal that had a leather foot bed for about 10 years.  They are wonderful, comfortable to stand, walk, play in. They are without a doubt the most comfortable shoe I own.  I wear them daily summer and winter(with socks).  In January of this year I was concerned they would not last forever so I embarked on a quest to replace them.  I found what appeared to be the exact replica on Amazon.  There was much discussion in the reviews about sizing being a little small so I ordered 1/2 size bigger.  Turns out they were not a good fit.  I returned and got correct size of 10 which the original was.  First off I was disappointed the leather insole had been replaced with the Micro-fiber foot bed.  This was not anywhere as comfortable as the leather.  The sandal is tight on my foot as the foot bed takes up additional space and does not settle out to conform to your foot..  I have loosened the draw string as far as I can, but the shoe, after 7 months, still feels like they need to be broken in. There is little room in the toe box area, they squeeze my feet to the point they ache at night. I can hardly wait until the end of the day when I can change them out for my originals. There is no way I will be able to wear a thick sock with them during the Fall and Winter. On a positive note they are extremely well built. Sturdy, good craftsmanship, fairly priced and provide good arch support. I am now looking elsewhere for something comfortable.  I contacted Keen directly and they confirmed the originals did have the leather, but now all but one style has the new microfiber inner sole. What a shame that I can only wear them for short periods of time before changing out to my old Originals.  I hope my originals continue to perform.  KEEN, if you are listening, I suspect you did away with the leather insole to save money, but you gave up the quality and short changed the customer.