Authentic Puppia Soft Dog Harness made out of 100% Polyester. Comfortable padded neck opening. Machine washable, but hand washing and air drying are recommended. X-Small - 10.25 x 15 Chest Girth 8.6 Neck Girth. The Puppia Soft Mesh Harness is one of the best-selling harnesses for dogs of all sizes. Made out of 100% Polyester soft mesh, this harness is comfortable, safe and stylish. This harness was designed with the dog's comfort and safety in mind.