I have shoe size 42- 42.5 depending on the manufacturer or section of shoes. I first ordered the fin size 41/42; Unfortunately too far and thereby loose fit, lack of unsafe power transmission! Conclusion: To send back and order one size smaller. The size 39/40 sits perfectly in the foot pocket, however, designed as a hollow sole by approximately 1cm too short, the toes hit the hard edge, or extend beyond the trough. This training is unfortunately impossible! They therefore had to be sent back as well. Materials and workmanship are excellent, even more, it is a great pity that the size is wrong, and the section of the elastic Slipper is running too too far. Conclusion: Search these fins in regional stores and try them there. Maybe I've got luckier.
