A St. Bernard-Labrador retriever mix is popularly called a "Labernard". Mixed-breed dogs have unpredictable temperaments due to the crossing of two pure breeds. In addition, many hybrids have an uneven ratio of purebred inheritance.
Both the St. Bernard and the Labrador retriever are large dogs, with the former capable of weighing up to 200 pounds. A mix of these breeds would almost certainly produce a large dog that is likely to have floppy ears and a robust composition. Personality-wise, the St. Bernard and the Labrador are known for their gentleness, affection and obedience. These breeds are intelligent, trainable and do well with families.