If you are the owner of a medium-sized dog that has a bit of an adventurous streak—or perhaps a bit too much “pulling power” for their own good—the Ancol Extreme Harness in Black is a piece of kit that actually lives up to its name. This is the Medium size, designed for a girth between 68cm and 86cm. It’s the perfect fit for those sturdy, high-energy breeds like Border Collies, Spaniels, or young Labradors who need gear that can handle a bit of rough and tumble in the great outdoors.

The “Extreme” range is built for durability, featuring a heavy-duty nylon exterior that is weather-resistant and tough enough to withstand brambles, mud, and everyday wear. However, Ancol hasn’t sacrificed comfort for strength; the interior is lined with a breathable air-mesh. This is essential for active dogs, as it allows for better ventilation during long hikes, preventing them from getting too hot under the harness. The chest plate is wide and deeply padded, acting as a shock absorber that spreads the weight across their chest rather than their neck—protecting their windpipe if they suddenly lunge at a squirrel.

One of the most practical “human” features is the large, reinforced grab handle on the back. This is a lifesaver when you need instant, physical control—whether you’re helping them over a difficult stile, keeping them close in a crowded area, or managing a reactive moment. For those who walk in the early morning or late evening, the harness is also trimmed with 3M reflective piping. It ensures that even in pitch-black conditions, your dog will catch the light from car headlamps or torches.

The hardware is just as serious as the fabric. It uses high-impact, lockable buckles that give you that extra layer of security, and the heavy-duty metal D-rings are built to stay strong under pressure. The classic black finish is sleek, professional, and stays looking clean even after a messy trip through the woods. It’s an honest, “pro-grade” harness that makes walking a spirited dog a much more secure and comfortable experience.