GoFit Eco-Friendly Yoga Mats are made from biodegradable & recyclable TPE foam. The GoFit Eco Mats contain no latex, PVC or rubber. The super thick 5mm mat has a patterned soft surface to provide superb traction to help achieve a grounded feeling in your poses without slipping. The closed cell construction of these mats prevent absorption of fluids, making it easy to keep clean. Bob Harper firmly believes that the best way to increase flexibility and develop core strength is through Yoga. The GoFit Eco Yoga Mat along with Bob's accompanying introductory Yoga DVD are powerful tools that will recruit and train every muscle in your body and stretch your limitations. Join Bob as he deconstructs the traditional concept of yoga, while coaching and motivating you through his body strengthening and rejuvenating yoga program.