A system that maintains a comfortable hand and/or feet temperature during the course of a water sports activity. Exhaled breath is fed to the inside of the sportsman's gloves and/or boots down a tube which runs along the inside of the wetsuit to take full advantage of the insulating properties of that wetsuit. Rubber moulding units at the rear neck wrists and/or ankles facilitate the tubing's entry and exit from the wetsuit without disturbing the watertight properties of that wetsuit. The rubber mouldings can either be built into the wetsuit itself or separate inserts to go between the sportsman's skin and the wetsuit seals at the neck wrists and ankles.