The Level One™ mat is the perfect mat for the new yogi: great grip and cushion to help you focus on the poses without worrying about slipping or what toxins are in your mat at an entry level price.  At 4mm thick, the Level One is slightly thinner than the Harmony mat and a bit thicker than the Travel Mat.  Click here for a review by Outdoor Prolink.  Level One is available in two colors and 68" long.  Please note, the Level 1 is constructed in a "single pass" with the reinforcing scrim on the bottom of the mat rather than the middle.