In reply to bouldery bits:
Colca, the supposedly waterproof ones. The holes are tiny as you'd expect, but let's not talk how watertight that area is!
I couldn't get them tight enough to nicely seal up the top anyway. Mountain Equipment Alpine Pro Shell Gaiters (note: ignore the naming - it's plain Gore-Tex and not Gore-Tex Pro - shady!) were even more disappointing actually. The drawcord failed in few months time. I got them in January and they broke on Easter weekend. ME decided to refund instead of repair and I can't wrap my head around why. I think they just glue the drawcord on, so I hoped Alpkit's design is going to be more robust. I am back to Montane Endurance Pro Gaiter, which I know it works, but the old pair had few stitches already due to crappy footwork.
A rather pricey adventure, but at least I am back to something I was happy with before. The £60 RRP tag is a bit too much, but after trying on few more pairs, I know what I am paying for. Maybe I should be more careful with crampons...