Ive had several pairs of Chaco sandals over the last 15 years. And I love them. My last pair of kids size 5, I wear a 7 womens, lasted me 14 years. I wore them A LOT. I loved them. These just aren't as comfortable. Im not sure if the sole is different, or why they're so much less comfortable. Ill use them but won't be able to wear them for 12-16 hours a day like my old pair.