Newfoundlands (‘Newfs’, ‘Newfies’) have webbed feet and a water-resistant coat. Males weigh 60–70 kg (130–150 lb), and females 45–55 kg (100–120 lb), placing them in the “Giant” weight range. Some Newfoundland dogs have been known to weigh over 90 kg (200 lb). The largest Newfoundland on record weighed 120 kg (260 lbs) and measured over 6 feet from nose to tail, ranking it among the biggest Molossers. They may grow up to 22–28 inches tall at the shoulder.
The Newfoundland’s extremely large bones give it mass, while his large musculature gives it the power he needs to take on rough ocean waves and powerful tides. These dogs have great lung capacity for swimming extremely long distances, and a thick, oily and waterproof double coat which protects them from the chill of icy waters. The droopy lips and jowls make the dog drool, but the advantage of this is that it provides passageways which allow the dog to breathe even when its mouth is full and swamped by waves.