Retro metal lunch boxes are back in style. For example, a Cat in the Hat lunch box ($14.50) will hold your green eggs and ham and a thermos of hot soup. www.lunchboxes.com; 323.660.9279.
A widemouthed stainless-steel thermos ($19.50) stays cool to the touch while holding piping-hot soup, and it keeps cold foods well chilled. Comes with a folding stainless-steel spoon that fits inside the lid. www.lunchboxes.com; 323.660.9279.
A classic Japanese bento box ($22) comes with chopsticks and has two compartments: the bottom for rice or sandwiches and the top, with a leakproof lid, for salads or saucy leftovers. www.mousseshop.com; 888.330.5550.
Pack a little aloha with your lunch with insulated Hawaiian-print lunch bags ($11). Cheerful floral prints in red, black, or blue. www.aloha2go.com; 877.398.1688.
Proceeds from ecofriendly lunch bags ($10) help support environmental education and legislation efforts to clean up the Hudson River. www.clearwater.org; 845.454.7673.