I bought these for my sister and she says they are super comfy. She is just getting back to bowling after many years and is still working on her approach, she says these are not too slippery but have enough slide when she needs it. I read the reviews and ordered a half size up. I had to return those for another half size up. Her normal shoe size is 5, and we ended up with 6. I think the variation in sizes is due to the fact that they are most likely made in China where quantity often over rules accuracy and sometimes quality. The Dexter website did have a sizing guide but even that didn't help. All that being said, I am going to order myself a pair. Ill just make sure I have free return/exchange.