Specifically designed to blend cushioning and stability, the Studio Select Power-Grip mat is constructed of 100% natural rubber with a specialized stabilizing core that prevents bunching and stretching, while providing a firmer, denser foundation. Both grounding and supportive, this 4mm mat also offers an amazing fabric-like texture that provides incredible grip.. Features -. Premium mat with a fabric-like texture for superior grip. Internal scrim prevents bunching and stretching. Ideal for hot yoga, in home or the studio. Durable and long lasting. 4mm of cushioning. Supports you and your joints. 100% natural rubber. Lifetime guarantee. Measurements: 68\"L x 24\"W x 4mm.. Info And Care -. Materials: 100% Natural Rubber.. Care Instructions: Yoga mats release a very strong but harmless odor when first unwrapped. Please unroll and air out your mat for 2-3 days before use. The mat may fade and become brittle and unusable if exposed to the sun for extended periods of time. We recommend storing your mat in a mat bag when not in use.