DESC: New Sattva Jute Mat - natural fiber grown primarily in India, Bangladesh and China This highly versatile fiber, jute combines breathability with high tensile strength, making the Sattva mat the perfect balance of durability and comfort The mat features a non-slip backing of PER, an eco-friendly material that contains no formaldehyde or heavy metals, is static free and resistant to mildew. The Hugger Mugger Cork block is 3.5" wide and extremely durable, stable and solid