The Scubapro Nova Scotia 7.5 mm. semidry suit will keep you warm while diving in cold water. The Nova Scotia is a semi-dry that has a T-Zip on the shoulders that will lessen the water coming in through your suit and prevent a whole lot of water movement.
Scubapro has added 1 cargo pocket on the leg and a separate hood and anti-abrasion material on the knee pads and back area, so areas that need extra protection are covered.