Safe non-toxic materials - free of bisphenol-a (bpa), pvc, lead, phthalates, dioxins, and biologically toxic chemicals. High-performance tpe material - keeps you steady in the most demanding poses. More than 50% thicker than basic mats - increased thickness (5mm) provides better support and comfort. Closed-cell construction - increased water, sweat, and bacteria resistance Free of latex and rubber. Dimensions: 24" x 72" x 1/5".