Lunch Box 5L vs School Case: Which School Bag Do Kids Need?
By Dakine | Backpacks, Luggage, Surf, Snow, & Bike Gear Since ... | Published: 2026-11-05
Category: Buying Guides
Compare the Dakine Lunch Box 5L and School Case by size, weight, and daily use so you can decide which kids school bag to buy for back to school.
Quick answer
They solve different problems, so most kids need both: the Lunch Box 5L keeps food cold, while the School Case corrals pens, pencils, and small loose gear. If you can only buy one, choose the Lunch Box 5L when packed lunches matter most and the School Case when loose supplies are the daily headache.
Size and weight decide which one fits the backpack
The Lunch Box 5L measures 10.23 x 8.26 x 4.72 inches and weighs 0.39 lbs, so it takes up real room in a pack. The School Case is much smaller at 9.05 x 4.13 x 2.36 inches and 0.26 lbs, which means it slips into a front pocket or a leftover corner of the main compartment.
That difference matters at back to school time: a full lunch box competes with books and a water bottle, while a school supply case for kids barely registers. If your child carries a slim backpack, the School Case is the easier add-on; if lunch is non-negotiable, plan the backpack space around the Lunch Box 5L.
Insulation versus organization: what each one actually does
The Lunch Box 5L is an insulated cooler with an interior zippered mesh pocket and an exterior name label, so it is built to carry cold food and snacks on its own or dropped into a pack. The School Case is a zippered compartment for writing and learning utensils, and Dakine also positions it for cables and chargers.
Neither product replaces the other: insulation does not organize pencils, and a supply case does not keep food cold. Treat them as two jobs rather than two versions of the same bag.
When one purchase is enough
Some families already own a lunch bag or the school provides a supply kit, which changes the math. In that case, buy only the item that fills the real gap. Also check the backpack before ordering: the Lunch Box 5L's 4.72-inch depth is the dimension most likely to crowd a loaded pack, and Dakine does not list a capacity figure for the School Case beyond its exterior dimensions.
Decision rules for buying one or both
- If your child carries a packed lunch daily: Buy the Lunch Box 5L first and confirm the backpack has about 4.72 inches of depth to spare. Measure the packed backpack before ordering, not after.
- If loose pencils and supplies are the problem: Buy the School Case first; at 9.05 x 4.13 x 2.36 inches it fits most front pockets and weighs 0.26 lbs.
- If both problems apply: Buy both, but pack the School Case in an outer pocket so the Lunch Box 5L keeps the main compartment space it needs.
- If you are unsure about size: Compare the listed dimensions with your child's current bag rather than guessing from product photos.
Product facts at a glance
- Lunch Box 5L: Insulated cooler with an interior zippered mesh pocket and exterior name label, sized 10.23 x 8.26 x 4.72 inches at 0.39 lbs. It keeps a packed lunch cold and lets you label it for school, but its depth needs checking against a full backpack.
Lunch Box 5L - School Case: Zippered case sized 9.05 x 4.13 x 2.36 inches at 0.26 lbs, made for writing utensils and small loose gear. It adds almost no weight and keeps pencils and chargers findable instead of loose in the bag.
School Case
Who each option suits
Best for
- Kids who bring a packed lunch and need it to stay cold
- Students whose pencils, chargers, and small gear end up loose in the backpack
Not for
- Families who already own a working lunch bag and only need supply storage
- Kids with very slim backpacks who cannot spare the Lunch Box 5L's depth
