If you have high-quality leather seats, you will want to get high-quality seat covers to protect them. High-quality seat covers can protect leather seats from wear and tear, sun damage, and other damage resulting from spills.
Car seat covers can damage leather seats if they are low-quality. This damage often results from fabric dye bleeding onto the leather. Along with that, an ill-fitting seat cover may slip and cause the seams to rub on the leather. To avoid this, be sure to get a seat cover that fits securely.