I have read a lot of negative things about these shoes here partially, but nothing can confirm it. Yes of course the Fußeinlage is not fixed and you can always remove it from the shoe and clean z. B. this. It may be that this can cause a problem in the water, as they then begin to swim. However, considering the shoes so before use, and the bear itself falls nothing here apart. I had the shoes for two weeks used almost every other day. Whether driving in boat trips or at Baggy, the shoe is simply practical. It does not cost much, consists of washable material, dries very quickly, has a thick rubber sole and has had no damage after two weeks of vacation. You can use it anywhere where there is a risk that the shoes are dirty or wet (In mud or dust, the water when boarding from the beach to the boat in rocky waters etc.). In addition, you are now not so heavy, which is another advantage. I at least perceive very happy with this purchase.