COREtec Plus Premium is one of the most comfortable luxury vinyl flooring applications on the market today. The COREtec patented construction has created a softer, warmer, and quieter floor than any of it's leading competitors. This collection is 100% waterproof so it can be installed in the wettest locations and still will not swell or buckle. Each plank has an attached cork underlayment that is naturally resistant to odor causing mold and mildew.