Huge fan of these. I bought them last year in Chestnut and this year decided to get them in black for myself and my mom. Definitely size up. I know these are for men, but I like them for women and think they are narrow enough. I wear a women's 9 normally, but ordered these in a men's 8. My mom is an 8.5 in women's and I ordered her a men's 7. I hope that helps with sizing if you are a woman wanting these!
Bought these as a gift for my father-- he appreciated the low back as they were easy for him to slip on & off but still stayed on his feet when he moved around. The thick sole is supportive and allows for a lot of versitile use!