PREMIUM MATERIAL&GREAT PERFORMANCE: Made up of eco-friendly materials, the top layer of this yoga mat is composed of PU material which has greater features of sweat absorption, slip-resistance, crack-resistance and moisture-proof. The base layer composed of natural rubber which provides perfect supporting and resilience, stronger traction and super grip. High-density, great resilience and cushioning, bend-resistance under tension or weight, water-proof, comfortable, PVC free, odourless