Our Soft Harnesses are made from DOOG's special "Neoflex" material which is kind of like a lightweight wetsuit harness for dogs! Adjustable in 2 places, they are soft and comfortable for exercise and so great for swimming and playing in the snow. The perfect choice for active, outdoor loving dogs. Suitable for small to medium sized dogs. (Larger dogs better suited to our step-in harness) Please refer to the size chart below to find the perfect fit for your best friend. Antimicrobial for the protection of the product Please refer to the size chart below to find the perfect fit for your best friend.