Bento Flex

The Smash Bento Flex is a 1.8L plastic-free lunch box designed primarily for primary-school-aged children and younger. It combines a durable food-grade stainless steel base, removable food-grade silicone inserts and a secure hinged lid. The configurable inserts let families change the layout to suit different lunches, snacks and appetites.

Yes. The Bento Flex is the Smash lunch box we recommend for kids, particularly primary-school-aged children and younger. Its secure hinged lid stays attached to the lunch box, while the removable inserts make it easy to create different compartment layouts for sandwiches, snacks, fruit and other lunch foods.

Yes. The Bento Flex is 100% plastic-free. It is made using food-grade stainless steel and food-grade silicone, so there is no plastic in the lunch box or its removable inserts.

The Bento Flex uses a food-grade stainless steel base with food-grade silicone components and removable silicone inserts. The product is plastic-free, food safe and designed for repeated everyday use.

The Bento Flex has a total capacity of 1.8L. The removable inserts allow the same lunch box to be packed in different ways rather than changing its overall capacity, giving families flexibility for different meals, snacks and appetites.

The Bento Flex can be configured in three different ways: Full Plate, All Rounder and Snack Attack. Each setup changes how the 1.8L space is divided, allowing you to adapt the lunch box for larger foods, mixed lunches, snacks or smaller portions.

Yes. The Bento Flex has removable silicone inserts that can be mixed and matched to create three different configurations. This lets you change the compartment layout depending on what you are packing that day rather than being locked into one fixed lunch-box layout.

The Bento Flex has a built-in hinged lid so the lid stays attached to the lunch box. This makes it particularly practical for kids because there is no separate lid to misplace at school, while still providing a secure closure for everyday lunch use.

The outer seal of the Bento Flex is leak-resistant, but the lunch box is not designed to be completely leakproof. The silicone inserts remain upright inside the Bento Flex regardless of the configuration being used, helping to keep different foods organised and separated. For liquids, dressings, sauces or anything where you want to ensure zero leaks, place a sealed Smash Dip Pot inside the Bento Flex.

The removable silicone inserts create separate sections for different foods and remain upright inside the Bento Flex in each configuration. They are useful for separating sandwiches, fruit, vegetables, snacks and other lunch foods. For liquids or sauces where zero leakage is important, use a sealed Dip Pot inside the Bento Flex.

No. The complete Bento Flex is not microwave safe because the main lunch-box component is stainless steel. However, the removable silicone inserts are microwave safe and can be removed from the stainless steel Bento Flex and reheated separately.

Yes. The removable food-grade silicone inserts are microwave safe when used separately from the Bento Flex. The stainless steel component must not be placed in the microwave.

Yes. All parts of the Bento Flex are dishwasher safe, including the stainless steel lunch box and removable silicone inserts.

We do not recommend freezing the Bento Flex. Freezing is outside our recommended use of the product.

No. We do not recommend using the Bento Flex in an oven or air fryer. The product has not been tested for the higher temperatures or heating conditions associated with these appliances.

Yes. Replacement Bento Flex insert packs are available separately, so you can refresh or add to your insert collection. The Bento Flex is also supported by the Smash Spare Parts Guarantee, which means if you lose an individual insert, replacement spare parts are available free of charge.

The Bento Flex combines a 1.8L plastic-free stainless steel construction with removable silicone inserts, three configurable compartment layouts and a secure hinged lid that stays attached. It is designed to adapt as lunch preferences change, while replacement inserts and the Smash Spare Parts Guarantee help keep the lunch box in use for longer.