This are exactly what I was looking for. I needed a thin sock to wear with my ankle boots and these are perfect AND they stay on!I started indoor rock climbing. I was looking for a super thin sock so I didn't have to put bare feet in my climbing shoes. These are PERFECT. So comfortable and as close to bare feet as I ever thought I'd find. When I wear these out I'm replacing for sure.The best breathable thin no shows. Comfortable and stay in place. I'll be ordering more.Don't waste your money...I wear a size 8 or 8.5 shoe, so I ordered these Phanously Ultra Thin Liner Socks in size 8-11 and they fit perfectly. They are extremely lightweight, almost like nylons and the same kind of silky texture, but the mesh top makes them more breathable. I have a few slip-on and low profile sneakers that I sometimes wear without socks, but don't love that feeling, so these should help with that. They won't be bulky or stretch out the shoes at all. They are cut a bit higher on the ankle than another pair of thicker no-show socks I have (see photo) but they still work with most of my sneakers. These stay in place well due to the non-slip back, but also because the ankles are quite elasticized. Hopefully they won't stretch out too much. I would prefer if these didn't have the text stamps on the toe area, though.These liners are thin, comfortable and breathe well. They fit as expected and the most important do not slip off your heel when you walk. The only reason I didn’t give them 5 stars because I don’t expect a liner to come up so far on my arch. They did show a little with my slip on shoes.These are a little bit different in terms of the top half as a mesh material and the bottom half is a kind of material. But they fit well, they are no show, and they have the rubbers in the back to prevent them from falling off when you walk.The socks are very breathable, comfortable, I use these with my low cut walking sneakers it’s been great