These Neoprene Waterproof Socks are quite comfortable, to wear with booties. They are best for warm weather paddling, however, I would not walk very far on them as they are a bit thin and will probably rip. These go especially well with the 5mm booties.
This YouTube video from Capas shows a person using the socks and what you can do with it.
As an Amazon Associate, I earn a commission from qualifying purchases.