Sealskinz socks – just how waterproof?

I use Porelle’s, years old, calfish length, with MT500 overshoes. A very waterproof combo, the overshoes have a nice velcro tab that can be used to help with ‘sealing’.

The Gore socks are really good – but I seem to have misplaced mine.

Had 2 sets, first set leaked like a sieve, the second set(which I rolled on, instead of pulling and stretching)were fine on most rides. Wicking socks, such as Lifa, certainly made them more comfy to wear.