What is the difference between cork back and foam back?

Select vinyl flooring is made with a pre-attached underlayment pad or backing made of foam or cork.

Cork Back: Our selection of vinyl flooring with a cork back includes a premium natural cork backing built-in for a quieter, warmer, softer floor without the need for additional underlayment. NuCore and NuCore Performance include a cork backing.

Foam Back: Our selection of vinyl flooring with a foam back includes a built-in antimicrobial foam backing for a quieter, warmer floor without the need for additional underlayment. DuraLux Performance includes a foam backing.