I love them, they are very comfortable, and very easy to put on and use. This is a product liability claim in waiting! Some of the charts are even incomplete (like exercise 1-35 is missing the three syllable patterns completely). Okay for training indoors only. Our Allen bike rack was wobbly due to our hitch being 2" and the bike rack being adjustable to fit 1. A couple of adjustments and the doors not only close nicely they lineup perfectly. Came sooner than estimated. Cant wait to start working up a sweat! They feel great to walk in when you are not using them as water shoes. "Then the real test comes when you put them to use.