Choosing Koris shower walls is a great way to enhance the look of your bathroom. This material has a timeless look that is also easy to maintain.Koris comes in many different colors and patterns. It is also waterproof. You can install Acrylic shower walls without grout lines and silicone joints. This allows you to clean your shower walls easily. Using a soft cloth, you can wipe down the walls to keep them looking their best.Koris is an excellent material for shower walls because it is a non-porous, water-resistant surface. This prevents the growth of mold, mildew, and bacteria.