Two layered structure with foam that distributes the weight evenly . The cushioning provides relief to ankles, knees and the back while standing and reduces fatigue. Kitchen mats are washable and Easy to maintain. Wipe them with a wet cloth using a mild detergent. Design on both sides that helps change the look of the Kitchen easily. Anti slip surface prevents accidents. The anti-slip qualities will differ on different surfaces. Made from superior PVC to withstand weight for extended periods. The way XL mats are packed wrinkles may first appear when initially unrolled. The wrinkles will go away after a few days of being unrolled and people walking and standing over the mat. Actual colours may vary from the image(s) shown due to manufacturing limitations & monitor settings