ComfortGels® Impression Yoga Mats are specially formulated to ensure maximum performance and comfort for your yoga, Pilates or fitness practice. The mats are designed using our patented G-Core Technology, which is a firm gel containing millions of microscopic air balloons. ComfortGels® Impression Yoga Mats are simply the world's best yoga mats that won't bottom out. The firm flexibility of the mat keeps you feeling grounded and allows for reduced impact on key stress points such as wrists, elbows, tailbone and knees. For the pure enthusiast who deserves the best yoga mat! Measures 24'' wide x 72'' long x 3/8'' thick and made in the USA.