These might actually work for fly fishing, depending upon how you use them. They would probably work best if you spend most of your time fishing from shore, only occasionally wading into the water. The sole looks fairly grippy, but all bets are off on slippery river rocks. One concern would be that if you are going to be spending a lot of time in the water, gravel will tend to accumulate in the shoes (and there don't appear to be good drains to help prevent this), then you would need to untie them and take them off to get the gravel out. One problem in finding good shoes for flyfishing (including the ones made specifically for this purpose) is that the ones that seem to work best in the water look like, well, water shoes (which limits their use when not fishing). The best shoe that I have found (based upon comfort and traction) is the North Face Padda http://www.backcountry.com/outdoorgear/The-North-Face-Padda-Amphibious-Shoe-Womens/TNF2843M.html Other water shoes can be found here: http://www.backcountry.com/store/group/170/Womens-Water-Shoes.html