YogaRat's SGS-certified RAT MAT PRO line of yoga mats is made of 100% TPE Thermo Plastic Elastomer material, so they're durable, recyclable and photodegradable. Thick, grippy and lightweight, RatMat Pro mats are closed-cell in construction so they won't absorb moisture during practice. Each RatMat Pro is two toned, some styles featuring printed designs on their top sides. The printing ink used to give our mats their distinct styles is also nontoxic. All our mats are manufactured in Taiwan, where the highest-quality, most environmentally conscious factories producing yoga mats are located. At YogaRat we take pride in offering premium yoga products without the premium prices and we strive for maximum eco-friendliness in all our products, processes and packaging. Don't forget to check out our 100% microfiber Yoga Towels, Hot Yoga Towels, SportLite Towels, Yoga Bags, Mat Sling and the new RatPad on Amazon by clicking the "YogaRat" link at the top of the page. Namaste.