How can you stop feathers from coming through on your cloths with a down coat?

To prevent feathers from coming through on your clothes from a down coat, you can first ensure the coat is of good quality with tightly woven fabric and proper stitching. Regularly check for any tears or loose seams and repair them promptly. Additionally, consider using a fabric liner or wearing layers underneath, and wash the coat according to the manufacturer's instructions to maintain its integrity. Using a down-specific detergent can also help keep the feathers contained.