I purchased these for water aerobics class on this site. The negative reviews regarding the traction (and safety) made me hesitate a long while before purchasing them but they are EXACLY what I’m looking for in a water shoe for class — a flat/mary jane style shoe that would give me some traction and protect my feet and toes from the rough pool floor. But I wanted something light and flexible so I didn’t feel like I was wearing sneakers in the pool. They’re a good brand and the price is excellent for water shoes. They feel great — skin tight but comfortable. They stay on my feet underwater and out. The insoles are removable (and yet not a bother while I’m working out). They dry really fast too. There are great water shoes! I LOVE them!I wear a standard 7.5 shoe but I ordered the 7.0 thanks to the helpful reviews and they fit perfect. I got them in Ocean Blue and the color was just like it was pictured.Regarding their slipperiness: Any shoe used on a wet surface that is flat (and shiny), like tile, will be slippery, even sneakers and bare feet. My club’s pool has cement-like floor but has some line tiles as well and the shoe still gives me traction on those. Even walking across the basketball court or the tiled floor in the locker room, they feel rubbery and I feel traction across the floors. Of course I walk carefully, you’re supposed to when you’re dripping water onto the floor you’re walking on.Here’s some additional product information I found helpful on another site (swimoutlet), not listed here.Speedo Amphibious Beach RunnerSimple and sweet, these sturdy mesh water shoes are so light and comfortable they will soon feel like an extension of your feet! Perfect for water aerobics and around-the-pool safety.* Durable TPR outsole for maximum traction* Quick-adjust Velcro D-ring closure* non-marking outsole* Mesh construction allows for instant drainage* water shoes provide protection for feet and traction when walking. As with any footgear, please use caution when walking on a wet and slippery surface.