The biodegradable prAna Revolution Natural Sticky Mat is as innovative as it is easy on the environment. Its unique dimension (30'' wide) and dual-scrim construction provide an incredibly stable and firm practice surface. Made without toxic glues, the mat is heat-laminated for added durability. prAna's largest yoga mat available. Made from 3 layers of biodegradable, non-Amazon harvested tree rubber that provides excellent grip in any pose. Firm cushioning for stability. Dual scrim design. Non-toxic. Closed cell construction prevents germs from absorbing into the mat. 78 long (198cm) x 30 (76cm) x 4mm thick. 8.38 lbs (3.8 kg). 100% Rubber.