This is a more modernized version of the traditional box in that it has small containers for things like dipping sauces. This particular bento box system is one of the most popular on the market.

From the site:
Popular the world over, the Laptop Lunch System includes Insulated Carrying Case, Bento Box, 3 open inner containers, 2 sealing inner containers, Spoon and Fork and the Laptop Lunch User’s Guide.

Features removable inner containers, sealable lids, dip container, stainless steel fork and spoon with stylish plastic handles, convenient size fits in backpacks, plastic containers (not lids) are microwave safe
containers and lids are dishwasher safe (top rack only).

Colors

PRIMARY Black carrying case with blue neoprene front panel. Bento Box with blue outer container, inner containers in dark green, red, yellow, purple, and teal.

WHIMSICAL Black carrying case with purple neoprene front panel. Bento Box with purple outer container, inner containers in bright lime green, orange, periwinkle, magenta, and teal.

BLUE Black carrying case with navy neoprene front panel. Bento Box with blue outer container, inner containers in periwinkle blue.

PINK Black carrying case with pink neoprene front panel. Bento Box with pink outer container with inner containers in magenta.

BLACK Black Box with Bento Sleeve. Black Bento Box with all red inner containers. This set does not come with a bottle. Box and sleeve are pictured separately, but come as a set.

New! BLACK Black carrying case with red neoprene front panel. Bento Box with black outer container with inner containers in red. Includes water bottle! Available now.

The Laptop Lunch User’s Guide will change the way you view lunch with
...Fresh ideas for making wholesome lunches kids love
...Strategies for improving lunchtime nutrition
...Tips for picky eaters
...Quick-reference shopping lists
...Creative lunch menus
...Quick and easy kid-friendly recipes
...Strategies for making the most of your Laptop Lunch
...Tips for reducing lunchtime waste

Sizes
Insulated Carrying Case: 7.5” x 11.5” x 2.5”
Water Bottle: 7” x 2”, holds 13 fluid ounces (black set does not come with bottle)
Outer Box: 9” x 7” x 2”
2 Inner Containers: 4.5” x 3” x 1.75”, hold 1 cup each
2 Smaller Containers: 3” x 2” x 1.75”, hold 1/2 cup each
Dip Container 1.5” x 1” x 1.5”, holds 1/8 cup

Great lunch box system that includes Insulated Carrying Case, Bento Box, 3 open inner containers, 2 sealing inner containers, Spoon and Fork. I'd use this for me, but I'd want something more fun for my little girl.

I wish they had these when I was in school!