The Polish Lowland Sheepdog, often referred to as the PON (an acronym for its Polish name, Polski Owczarek Nizinny), is a lively and intelligent herding breed known for its shaggy coat, boundless energy, and affectionate nature. These dogs typically weigh between 30 to 50 pounds and stand around 17 to 20 inches tall at the shoulder. The Polish Lowland Sheepdog has a robust and muscular build, with a dense, double coat that is weather-resistant and comes in various shades of gray, often with white markings.