The fins are touted as snorkeling fins - which I can only agree.
The fins here the lack of description:
Length: 54cm, maximum width: 20cm, Weight: 500g;
Material: finleaf from rather hard plastic foot made of soft rubber (extends below the heel);
Size specification: fit for bare feet.
The fins would be good for different types Kick suitable because not to limp. 4 stars because they are comfortable to wear and would fit well into the luggage because of the compact dimensions and low weight. 1 star deduction because barefoot walk to the dive site was not located. Whether the heel strap holds and how the fins I can not judge behavior in the water, because I never had the water on.
Corrected text on 27.8.2012 and now a star more, as it obviously foot booties are combinations with which the fins but fit.