Skinners Field & Trail Grain Free Chicken and Sweet Potato 2.5KG. The Grain Free kibble is specially formulated to support working dogs needing a Grain Free diet which are regularly working a moderate intensity. It has been carefully developed so it has the correct energy requirements in for a variety of active dogs. The Grain Free food is ideal for dogs with sensitives and intolerances to grains such as wheat, maize, barley or oats. Skinner’s Chicken and Sweet Potato has a protein level of 25% to support mus-cle integrity and a fat level of 13% to support the energetic requirements of a range of active dogs. The blend of sweet potato and potato provides a digestible source of carbohydrate to also support activity. It is the ideal day-to-day food to meet requirements for active dogs. You can feed it straight from the bag or, if your dog prefers, moistened a few minutes before serving with a small amount of tepid water.