BRAND NEW Natural Rubber Yoga Mat 4mm Rubber Yoga Mats are superior to TPE/Foam type mats for many reasons – Rubber has the GREATEST grip underfoot by far, is naturally antibacterial, eco-friendly and long lasting. Rubber is certainly the way to go. Our Exclusive, custom designed Yoga Mats are used for our own practises as well as our students. We find these have the best balance of extreme grip, stability and cushioning. Longer and Wider than most mats and with a Depth of 4mm. Super-Grippy even when sweaty – our mats include Alignment lines for guidance in Asanas.