The prAna Indigena Natural Yoga Mat's three layers of natural rubber are heat laminated for a durable, eco-friendly construction. Unique two-cotton scrim construction works to limit stretching in three directions for a strong, stable yoga practice. A woodgrain pattern gives the yoga mat an attractive natural look. Made from 2 layers of biodegradable, non-Amazon harvested tree rubber with a wood grain textured surface that provides excellent grip in any pose. Firm cushioning for stability. Single scrim design. Natural rubber is non-toxic. Open cell construction. 78 long (198cm) x 26 (66cm) x 4mm thick. 5.8 lbs (2.77kg). 100% Rubber. Material: Rubber.