Dry Suits made of highly durable materials like new Trilaminate or Cordura. Good for demanding divers. Best dry suits form Santi, Eques, Seemann, Scubapro.
Very warm and durable Dry Suits made of neoprene. Here you can find high compressed or crushed 2mm neoprene or light compressed 6mm neoprene. They are very warm and often don't need additional insulating