Dabbawalla Lunch Sacks are crafted from eco-sponge, an innovative fabric that has earned the rigorous Oeko-Tex 100 standard of safety in textiles. There are 2 mesh pockets inside and 1 outside pocket in the back. Free of lead, PVC, phthalates and over 100 other harmful substances. The completely machine washable fabric is stain resistant and insulates to help retain food temperatures. 12 x11 x 5 inches.