The new Oregon ankle boots from Blackfox are made of water-tight thermoplastic rubber with an insulating neoprene lining. They have good non-slip soles made of EVA material suitable for all surfaces.
These boots are super light weighing around 260g each depending on size.
Only size left is 37
To help your boots last, wash with water or soapy water. Allow to dry in open air and then store away from a heat source or direct sunlight