By Milo from Seattle, USA – They are impressive Marc. I was a competitive swimmer years ago, and its great to have a fin that doesn’t make me alter my kick. It’s just spring now here, so I’ve mainly used them in a pool so far. But just being able to walk around on deck with the fins, go into the hot tub and then back to the lap pool proved their worth. Shoes and shinfin™ fins are a great combo. The shinfin™ fins allow me to leave the shoes on in the water – which I need because I get out of Lake Washington at a different place than I get in. Surprisingly, the drag from leaving the shoes on is not that much. I think your fins are creating a dead area that shields the shoes from the water flow somewhat. I also ride a jet ski far from shore. I will wear the fins on the jet ski. I’m curious to try them with my full scuba gear as well – seems like they would work well. Would be good to get all geared up for shore or boat dive and not have that final step of struggling with getting the fins on.