Bento boxes are hard-sided containers multiple compartments ... Many parents I spoke to prefer stainless steel or glass over silicone or plastic because they are less likely to retain food odors ...

The compartments within bento boxes promote portion control, too. I'm also all about keeping harmful chemicals away from my family whenever possible, so I try to avoid storing food in plastic ...

That said, however, it's the most well-designed lunchbox (and bento box) I have ever used. The containers were completely leak-proof, and the magnets that make it close were satisfying to snap ...