• I wear a 10 and my first pair was a 10, they seemed 1/2 size to big. My other ones are a 91/2 and they fit perfect. I do not wear any socks with them, so maybe in your case you should order your real size. Hope this helps
    Answered on 9/24/2015 1:01:26 PM by Viki from Michigan
  • thats what i use mine for too! i think 1/2 size bigger will do you. i have room for socks and mine are 1/2 size bigger. i don't think you'd be happy with a whole size bigger and the arch may not fit where you'd want to ti. plus, these have stretch!
    Answered on 9/24/2015 2:07:52 PM by Ana from Santa Cruz, CA
  • I, too, have a narrow to medium width (more on the narrow side, but often medium is all there is and is always fine). I am also a nine. I use these on tile floors, at night often with medium weight socks. While I can't be sure, since the width is adjustable-- see that strap nearest the toe. I t has velcro-like closure -- I think all but the heaviest socks would be fine. Hope this helps.
    Answered on 9/24/2015 2:09:13 PM by Ex-NY from Mountains of NM
  • Correction. The velcro closure is on the strap farthest from the toe. Sorry.
    Answered on 9/24/2015 2:10:50 PM by Ex-NY from Mountains of NM
  • My size fits me perfect fit but if you are wearing them with a thick sock I recommend a 1/2 size up.
    Answered on 9/24/2015 4:16:03 PM by Lynn from Miami Fl
  • I usually wear a size 8 between medium and wide. However, Teva's run a little large. I ordered a 7.5 and if its fine without socks, but probably would be a little tight with socks. So, since your feet are narrower than mine, perhaps your regular size 9 would work with socks. I don't know if you would want them larger, but not more than 1/2 size up. I am wearing them now around the house now.....
    Answered on 9/24/2015 4:20:47 PM by Janet from CA
  • Sorry, no idea. Too many variables. I have never tried mine with socks but I suspect it would be tight at the front.
    Answered on 9/24/2015 5:34:25 PM by owlgrabber from Oregon
  • I usually wear a size 5 1/2, the slides fit perfectly. I enjoy the style, they are comfortable, and probably could wear them with socks in the winter. Inside shoes is a good idea, carpet wouldn't get soiled as easily. I have walked in them all day and haven't had a problem. (I have flat feet).
    Answered on 9/24/2015 7:46:26 PM by Happy feet from Lansing
  • I ordered my true size. Have been very pleased with them and if you have a N to M width, you should be fine without ordering up.
    Answered on 9/25/2015 7:04:03 AM by B from Missouri
  • According to our fit models this item is running true to size.
    Answered on 9/28/2015 11:11:11 AM by Product Specialist Greg from Sierra Trading Post