OMSutra OM Shiva mat bag, is made of high quality eco friendly 100% cotton canvas fabric . Each bag features beautifully embroidered "OM" design with golden thread just below the zippered pocket. "OM" is a Sanskrit symbol representing the original and most powerful mantra ."OM" is the whole universe coalesced into a single sound and represents the union of mind, body, and spirit which is the heart of yoga.