Zip soft lunch pack is available in variants of 3 & 4 steel containers in a smart and sober looking zipper pouch. This pouch has a silver thermal insulation from within that will keep the food moderately warm and fresh for hours. The stainless steel containers have lids with four sided clip lock that snaps easily into the container. It also has a silicon gasket that keeps the containers absolutely leak proof and airtight. These containers are BPA free and made from food grade material. It is a perfect choice for those who love to carry home cooked food to work, school or on a leisure outing.