Most bento-style containers offer 3–5 compartments and often include removable trays and optional dividers so you can keep foods separated or create an extra section when needed.
Many models advertise leakproof or leak-resistant lids with contoured or airtight seals; some trays are explicitly described as leak-proof to help keep different foods separate.
Some bags are fully insulated with thermal liners, and several box-style containers include removable or built-in freezer/ice packs that sit under the food tray to keep lunches chilled for hours.
Removable trays are often microwave-safe and top-rack dishwasher-safe. Outer shells and soft bags are commonly spot-cleaned or hand-washed; some listings explicitly recommend hand-washing the outer shell.
Product listings span toddler/kids sizes through teen and adult options. Examples in the available details include All Ages, 3 years and up, 8 years and up, 10 years and up, and 16 years and up.