DOOG soft harness are made from DOOG's special 'Neoflex"material which is kinda like a lightweight wetsuit harness for dogs! Soft and comfortable for exercise and so great for swimming, this great range of soft harness is the perfect choice for active water 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.