This was an excellent shoe over the year I had it…
Materials: neoprene like rubber
This was an excellent shoe over the year I had it BUT it started to smell so bad inside I had to let them go to the trash, too expensive and only one year with approx. less than 20 uses. Material stared to wear away also.
I did love the feel, comfort and they stretched on pretty quickly. They were also one size larger than I normally wear. I dried them out and washed them by hand and let air dry but the lake and pond water caused them over time to become unbearable after a day's use.
One year and in the trash, should be better than that. I think it's the rubber neoprene type material. It reacts after time.