Our original three-piece bamboo lid kit is the perfect addition to the 8 cup Adventure X stainless steel container set to lock in liquids. The silicone seal around the perimeter prevents spills and food from mixing on the inside when reVessel one and two cup inserts are used. The bamboo top offers the luxury of having a cutting board conveniently integrated to quickly chop or serve food wherever you are. With this lunchbox configuration, you can confidently carry up to six one-cup inserts or three two-cup inserts in your compact kit. As always, with reVessel designs, no food will come into contact with plastic.