Good luck with the mols neuroticm - I hope they are better made than the £40 ones I have from office, they are not waterproof, not even walking over damp grass or wet pavements due to the stitching on them - if it is raining I don't bother putting them on, because I know my feet will be wet.
I know some people haven't had the same problem, but it is worth knowing - a pair of dp PU ones at the same price lasted a lot longer.