I bought an orange pair from the underwear store for workouts (weight training, circuit training and crossfit) and they were great! I've never had shoes like this and was hesitant at first. The sole was flatter than I'm used to, the flexible upper feels more like a sock than a regular shoe, and the heel of the shoe feels more like it's wrapping around my heel. Although I've never seen these features before, I really like them! When I stand up I feel more grounded and grounded, that makes sense. They are amazing!