Premium workout mat made from performance fabric which is antimicrobial, breathable, water and stain resistant. High durability with minimal shrinkage or stretching. This mat is firm instead of cushy and is perfect to sit on for more comfort when stretching, a more secure low back support in curl, under your knees in kneeling seat and under your wrists in pushups. This mat is not flexible but can withstand your body weight and is sure to keep its firm support. The possibilites for support are endless with this firm support mat. Dimensions 21" x 21" x 2". Features: Auto-lock Nylon zipper and comes with the foam insert.