Can't complain but I'm not their biggest fan. Synthetic material is almost like thin neoprene (no fabric) which isn't ideal is if you tend to get sweaty feet. I'm usually a 9 or 9.5 and I'm glad I went for the larger size which I feel gives some breathing room. This makes them easy to care for and will never get dirty if you spill water on them. Also, the sole material is hard, so the shoe makes a loud clicking noise on hard floors. The insole/insole is comfortable enough for me.