Tosas are large, powerful dogs. Males typically weigh between 90-200 pounds and stand about 24-32 inches tall at the shoulder, while females generally weigh between 70-150 pounds and stand about 22-28 inches tall. Their size and musculature make them imposing, yet they possess a gentle demeanor when properly trained and socialized.

Tosas are known for their calm, dignified, and loyal temperament. They are intelligent and can be independent, which means early training and consistent socialization are essential. They are usually good with their families but may be reserved or protective around strangers. Proper training can help them develop into gentle and well-mannered companions.

The coat of the Tosa is short, dense, and protective. It comes in various colors, including red, brindle, and fawn, often with white markings. The coat is relatively low-maintenance but requires regular brushing to remove loose hair and debris.

Tosas require an active lifestyle and benefit from a consistent routine that includes exercise and training. They do best in homes with a secure yard where they can run and play. While they can adapt to various living situations, they should not be left alone for long periods, as they thrive on human companionship.

Tosas enjoy a range of activities that provide physical and mental stimulation, including:

• Daily walks, runs, or structured play
• Obedience training and socialization
• Participation in dog sports, such as agility or protection work
• Interactive games like fetch or tug-of-war
• Engaging in scent work or tracking activities

Overall, the Tosa is a courageous and loyal breed that requires attentive training, socialization, and a moderate to high level of activity. With the right environment and commitment, they can make devoted and loving companions for active families or individuals.