The Best Silicone Lunch Boxes of 2026
All 26 platinum and food-grade silicone in our lunch boxes database, graded Bad to Excellent and ranked lowest risk first. 26 earn a buy-worthy grade.
Why Klean Kanteen Double Wall Vacuum Insulated wins, and what it beats
Every grade on this page is one sum. A category starts from a baseline, each disclosed material or coating adds risk points, and each thing the brand or a third party has published takes them away. Below is that sum for the winner, then for 2 products it beats, so you can see exactly where the 30 points between the top and the bottom of this silicone lunch boxes ranking come from.
The winner
Made of Stainless steel body, silicone gasket lid seal.
- +25Category baseline. The starting point for this type of product, before anything specific to this product is counted.
- -10Brand-stated PFAS-free. The brand states this product is PFAS-free. We have not verified the claim.
- -20Bare uncoated material. Recorded as a bare, uncoated material with no surface coating or treatment.
What the grade does not fix. Nothing specific to this product adds risk, so what remains is the category baseline that every product here starts from, and our graders recorded 3 other hazards on it. See the full breakdown.
What it beats, and why
What puts it behind. No PFAS disclosure, +15 points. No public statement from the brand about PFAS in this product. The winner carries no such factor.
Made of 304 stainless steel container with silicone or rubber gasket lid seal.
- +25Category baseline
- +15No PFAS disclosure
- -20Bare uncoated material
20risk points, a grade of 80
What puts it behind. No PFAS disclosure, +15 points. No public statement from the brand about PFAS in this product. The winner carries no such factor.
Made of Polypropylene (PP) plastic container with silicone gasket.
- +25Category baseline
- +15No PFAS disclosure
- -10Base material not linked to PFAS. The main material recorded for this product is not one associated with PFAS.
30risk points, a grade of 70
No product on this page was physically tested by us. Every number above comes from published materials, ingredient and coating disclosures, certifications and brand statements, scored on one public rubric. Formulations change without notice, so check the current product listing before buying.
All 26 silicone lunch boxes, best graded first
Klean Kanteen
Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid
- Stainless steel body, silicone gasket lid seal
- The brand calls it PFAS-free, which we have not verified
- Silicone gasket degradation
3 hazards checked on this product. See all of them.
304 Stainless Steel Refrigerator Sealed Pyxis L Size Rectangular Bento Pyxis Lunch Pyxis With Lid Organizer
- 304 stainless steel container with silicone or rubber gasket lid seal
- Nickel leaching from 304 stainless steel
3 hazards checked on this product. See all of them.
Lock & Lock
LocknLock ToGo 2-Tier Stainless Lunch Box, 500ml + 800ml, Snap Lid, Silicone | Multicolor
- stainless steel containers, silicone seals, snap lids
- We found no PFAS statement from the brand
- Silicone seal degradation over time
3 hazards checked on this product. See all of them.
Prepara
Latchlok Click Stainless Steel Food Storage Container Set
- stainless steel with silicone gasket seals
- We found no PFAS statement from the brand
- Silicone gasket degradation over time
2 hazards checked on this product. See all of them.
S'well
Stainless Steel Bento Box Onyx
- stainless steel, silicone seals
- Silicone seal degradation
2 hazards checked on this product. See all of them.
Bentgo MicroSteel Lunch Box
- Stainless steel with silicone gaskets
- Silicone gasket degradation
2 hazards checked on this product. See all of them.
Prepara
Latchlok Click Stainless Steel Container
- stainless steel, plastic latch and silicone gasket
- We found no PFAS statement from the brand
- Silicone gasket degradation
2 hazards checked on this product. See all of them.
Esquirla Lunch Box Stainless Steel Leakproof Rectangle Portable Food Container Reusable Stackable Meal Prep Container wi
- stainless steel and silicone gaskets
- We found no PFAS statement from the brand
- Silicone gasket degradation
2 hazards checked on this product. See all of them.
Klean Kanteen
Rise Food Meal Box
- Stainless steel container, food-grade silicone lid
- We found no PFAS statement from the brand
- Silicone elastomer degradation
OXO
Good Grips Container POP
- Polypropylene (PP) plastic container with silicone gasket
- Microplastics
2 hazards checked on this product. See all of them.
Zojirushi
Classic Bento Lunch Jar
- stainless steel, silicone gasket
- Silicone gasket degradation
2 hazards checked on this product. See all of them.
Aladdin
Metal Lunchbox Thermos Aladdin
- Stainless steel body, plastic/silicone components
- We found no PFAS statement from the brand
- Silicone and plastic seal degradation
3 hazards checked on this product. See all of them.
Bentgo
Kids Snap & Go Leak-Proof Lunch Box
- Polypropylene (PP) and silicone gaskets
- We found no PFAS statement from the brand
- Microplastic migration from thermal stress
2 hazards checked on this product. See all of them.
EasyLunchboxes
Bentgo Easylunchboxes 4-Compartment Oval Bento Lunch Box
- Polypropylene (PP) plastic with silicone seals
- We found no PFAS statement from the brand
- Microplastic shedding with wear
3 hazards checked on this product. See all of them.
EasyLunchboxes
Bento Lunch Boxes Reusable 5-Compartment Food Containers for School, Work, and Travel
- Polypropylene (PP) compartmented tray, silicone seals
- We found no PFAS statement from the brand
- Microplastics
2 hazards checked on this product. See all of them.
EasyLunchboxes
Bento Snack Boxes Reusable 4-Compartment Food Containers and
- Polypropylene (PP) plastic containers and silicone lids
- We found no PFAS statement from the brand
- Microplastics
2 hazards checked on this product. See all of them.
Ello
Benni Kids Bento Lunch Box with Carry Handle & Ice Pack
- BPA-free plastic (polypropylene/silicone), ice pack gel
- We found no PFAS statement from the brand
- Leaching from ice pack gel
2 hazards checked on this product. See all of them.
Monbento
Tresor Bento Box
- ABS plastic, stainless steel, silicone gasket
- We found no PFAS statement from the brand
- Microplastics
2 hazards checked on this product. See all of them.
Omielife
Omiepod Lunch Box for Kids, Capri Blue
- Stainless steel, silicone, plastic containers
- We found no PFAS statement from the brand
- Microplastics
Planetbox
Voyager Leakproof Lunch Box
- Stainless steel container, silicone seal gasket
- We found no PFAS statement from the brand
- Silicone gasket degradation
4 hazards checked on this product. See all of them.
Rubbermaid LunchBlox
Rubbermaid Lunch Blox Set
- plastic (polypropylene/tritan) containers, silicone seals
- We found no PFAS statement from the brand
- Microplastics
3 hazards checked on this product. See all of them.
Rubbermaid
Lunchblox Entrée Kit, Green
- Polypropylene (PP) plastic container with silicone seals
- We found no PFAS statement from the brand
- Microplastics
2 hazards checked on this product. See all of them.
S'well
Kitchen | S'well Light Pink Stainless Steel Insulated Bento Lunch Box | Color: Gray/Pink | Size: Os
- stainless steel body, silicone gasket
- Silicone gasket composition and additives
3 hazards checked on this product. See all of them.
Zojirushi
Ms. Bento Lunch Jar
- Stainless steel food container with silicone seals
- Silicone seal degradation over time
2 hazards checked on this product. See all of them.
OXO
Prep & Go Sandwich Container
- Plastic (polypropylene), silicone gasket
- Microplastic shedding when heated or degraded
2 hazards checked on this product. See all of them.
Bentgo
Chill Max Leak Proof Lunch Box
- Plastic (unspecified resin), silicone gasket
- We found no PFAS statement from the brand
- BPA & bisphenols
3 hazards checked on this product. See all of them.
Every material, ranked together, is in the full lunch boxes ranking →