Be very careful about buying these boots. They aren't waterproof, the sole is made of flexible foam trainer material so you can feel every rock you stand on (quite painful after a while) and I managed to wreck (rip the toe plastic from the material) a new pair after a taxing walk in the Scottish mountains.
The grip on the ground is very good.
If you are planning on walking anywhere except over flat dry ground, choose a more sturdy walking boot. Your feet will thank you for it.