Do better yoga in a smart way with the Yoga Natural Rubber Mat by Numbers Yoga Mat. These mats are more than just a help to match your footing with the grip you can get out of natural rubber. The numbered targets and grid lines you see here will help you correct your own body positioning and alignment in poses and thus help you customize your practice. These mats are 25% larger than standard mats which are made in the USA out of natural rubber. They are not only good for you but also for the environment. Every mat will come with a DVD that has detailed instructions on the 30 foundational poses upon which you can build your practice. It will also help you measure the width of your hips and shoulders and how to modify instructions in order to achieve that unique combo of height and flexibility. Doing yoga with perfection is just one of these mats away.