These grippy shoes are amazing. I work out in my home on carpet without shoes. I was having difficulty with some of the exercises because I felt like I was slipping on the carpet. My friend and I bought these hoping they would help give us more stability. They work so great. They are designed very well and provide support for my archless foot. I also am looking forward to trying them in Costa Rica. I have a home there with wood floors. I don't use shoes on the floors to protect them, but I am so excited to use these. I'm going to buy another pair.