The humangear Stax - XL EatSystem is a stacking container system that clicks together with a simple 180-degree twist. Silicone gaskets ensure leak-tight seals and removable ClipHandle for comfortable carrying or clipping to packs, totes, and straps. In addition to two food containers, the XL Stax has a set of GoBites Click utensils and a utility tray. Lids snap onto container bases when in use so you don't lose them. The container bases are contoured to fit perfectly with the GoBites spoon.