These boots look great, they're nice and light and they seem watertight, although I haven't tested this feature. Sadly though they're not comfortable at all and the construction at the heel inside the boot is badly designed or finished. The join in the material meets right in the middle at the Achilles heel resulting in a bump which rubs against the heel on every step. The left boot is worse than the right. I've just come back from a mile walk in town and I've already got blisters. Unfortunately it's been several weeks since I bought them and I've only just discovered the problem so can't return them. I'll have to find some DIY method of resolving the problem like using duct tape or wearing several pairs of socks. This is not what I'd expect from a company of this standing. Disappointing.