Durable quality cooler lunch bag is made of German washable 0.55mm kraft paper which is lightweight with high tear resistance. Made of natural wooden fiber and synthetic latex. It has 4mm PE foam and silver aluminium foil liner insulation, and a open pocket inside. This bag comes with natural coloured top polyester zip closure, a velcro closure flap and polyester cotton webbing handles. The eco-friendly cooler lunch bag to take on your next adventure. Note that green stock comes stock with the "Rockside" brand on front leather patch.