Bought these on a whim as they were on sale on Amazon. Turns out they are fantastic - very sturdy and supportive, as well as innovative, coming with three sets of insoles to adjust the dorsiflexion. Extremely comfortable both for walking and intense workouts. I do a lot of cross training (weights, step training, plyometrics, etc.) and they're ideal for all of that. I've used them for one workout so far and they feel great, although different from regular trainers as they provide a much higher level of support, which I prefer. Haven't yet tried the level 5 insoles which intensify toning in your workout. Planning to buy another pair because the price is absolutely ridiculous for the quality and design. They look really smart, too. Grab them while you can!