Constructed with 1’ or 2’ wide panels that fold according to style for easy storage and portability. Inside filler is 1?” thick x-link. Cover is made of 18 oz reinforced nylon and vinyl for long-lasting durability. The mat surface is textured for positive footing and balance. All seams are sewn with Dacron thread, to maintain integrity under the most demanding use. 2” wide Velcro fasteners are on each end, so mats may be joined securely end to end for physical fitness training. Also available with Velcro on all four sides for larger mat areas. Multiple colors available. Made in the USA.