Bento Box with 8.5oz Thermos for Kids & Adults - Leakproof Lunchbox

Our review of this bento box finds it best for parents packing school lunches and adults who want portion control with hot-food options. The single biggest reason to buy is the built-in insulated food jar combined with individually sealed compartments, which keeps soups or warm meals separate from cold sides without any leakage. The box balances capacity and organization so children and bigger eaters both get enough food while parents get the reassurance of a 100% leakproof seal and dishwasher-safe convenience.

Key Features

• Built-in thermos: The removable 8.5oz insulated food jar lets you pack hot food or soup while keeping other items separate and fresh.
• Individual airtight lids: Each compartment has a silicone rubber gasket and snug fit technology to prevent cross-contamination and leaks between sections.
• Customizable compartments: A removable divider converts the tray to 3 or 4 compartments to fit sandwiches, pasta, fruit, or snacks as needed.
• Large capacity: The full container holds about 60 oz (1774 ml), giving generous space for kids or adults who need larger portions.
• Kid-friendly design: Thick but lightweight materials, easy-to-use latches and an air hole plug make it simple for small hands to open and carry.
• Dishwasher and freezer safe: Most components are top-rack dishwasher safe and freezer safe, saving time for busy families.

Who It's For

This bento box is ideal for parents packing lunches for preschool, kindergarten, elementary school or daycare who want a reliable leakproof system and portion control. It also suits adults who prefer a compartmentalized container with an insulated jar for hot meals or soups on the go.

Those who should look elsewhere include people who require an oversized thermos for main-course hot meals (the included food jar is 8.5oz) or users who need every exterior piece dishwasher-safe; the shell should not be put in the dishwasher, so minimal hand care may be required.

Pros & Cons

Pros

• Excellent leak resistance thanks to individual airtight lids and silicone gaskets.
• Good insulation keeps food warm in the 8.5oz thermos for school or work.
• Generous 60 oz capacity with removable divider for flexible portioning.
• Utensils snap to the lid and many parts are top-rack dishwasher safe for easy cleanup.

Cons

• The included thermos is compact at 8.5oz and may be small for larger hot meals.
• The outer shell is not dishwasher-safe, so some parts still need hand care.

Specifications

Brand	Fimibuke
Total capacity	60 oz / 1774 ml
Insulated food jar	8.5 oz
Compartments	Removable divider for 3 or 4 compartments
Materials	Food-grade, BPA free, odorless, non-toxic
Cleaning	Removable parts top-rack dishwasher safe; shell not for dishwasher
Recommended age	3+ years

Our Verdict

The Fimibuke bento with an 8.5oz thermos is a practical choice for families seeking a reliable, leakproof lunch solution that keeps hot and cold items separated. Its flexible compartment layout and generous overall capacity make it good value for parents and adults who want meal variety and portion control, though users who need a larger thermos or full dishwasher convenience should consider alternatives.

Frequently Asked Questions

Is the thermos removable?
The insulated 8.5oz food jar is removable so it can be used inside the box or separately for hot meals.

Are the compartments really leakproof?
Yes, each compartment has an individual airtight lid with a silicone gasket designed to prevent leaks and keep foods separate.

Can I wash it in the dishwasher?
Most removable parts including the tray, lid, utensils and food jar are top-rack dishwasher safe under 80C, but do not put the outer shell in the dishwasher.