Sealskinz are very good but they do start to let a bit of water through after a lot of use. Had mine for 8 years and the first 3yrs i used them 3 times a week on average and they were sensational. Holding a kayak stable in the water while a client climbs aboard , with ice on the grass from a frost and not getting wet feet is a bonus
But these days if i stand in the water for more than about 10secs a bit of water starts to get through..