"I wear these to work just about every single day and they last me about 6 months. Last year I bought a size 9.5, this year I ordered the same size and I had to exchange to a size 10 which is just barely too large on one foot (my right foot is slightly smaller than my left). However they never slip off! They provide plenty of traction and are comfy enough you can walk in them during your metro commute if necessary. I've never gotten a blister in these. I highly recommend these shoes for every day office wear with or without tights or pantyhose."