Sand, gravel, smaller stones ...
... can be something of a problem.
With a more "open" design, it is easy enough to remove them simply by lifting and shaking your foot. The current Simms design is a bit more "closed" than I would prefer, but that should reduce the amount of larger material that can get in and I think the sizing will allow for thicker socks which eliminates a lot of the irritation caused by getting smaller materials inside.
Part of it gets down to whether you are a "tender foot" in the literal sense, and that is not meant negatively. I seem to tolerate stuff getting in my footwear, whether boots or sandals, better than a lot of folks do.
Guess I'll know in a few months how the sandals work out. No matter what on that score, I'll know whether I want to invest in the Simms Streamtread boots when I need to replace my current boots.
John
The fish are always right.