🍱 Yumbox Prêt · Stainless Steel Bento

Yumbox Prêt Leakproof Stainless Steel Bento Lunch BoxSandwich-Friendly · 304-Grade Steel · 3.4 Cups · 4 Colours

Premium stainless steel, a full sandwich and four sides — leakproof, organised and ready to go. Practicality meets elegance, every lunchtime.

304 Stainless Steel Sandwich-Friendly 3.4 Cups / 800mL Leakproof Seal BPA Free

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Sandwich doesn't fit your bento?

The large main compartment fits a standard full sandwich — plus space for fruit, veggies and a dip.

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Tired of plastic staining and smells?

304-grade stainless steel doesn't stain, warp or hold onto food smells — clean and fresh every time.

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Dips mixing with everything?

Silicone seals keep each compartment separate and leakproof — hummus stays with hummus.

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Want a lunchbox built to last?

Premium stainless steel construction — durable, sustainable and designed for everyday long-term use.

About this lunchbox

Large left compartment fits a full sandwich with room to spare

Top right and bottom right: two smaller compartments for fruit, veggies or snacks

Centre: round stainless steel dip well for hummus, yoghurt or sauces

Blue silicone lid seals each compartment individually — leakproof when closed

All-stainless interior — no plastic contact with food

Compact latch and clean outer shell — designed to fit most lunch bags

Premium 18/8, 304-grade stainless steel

Food-grade 304 stainless steel is the gold standard for safe, durable food storage. It won't stain, corrode, warp or absorb food odours — and unlike plastic, it won't degrade over time. BPA free and phthalate free throughout.

18/8 · 304 Grade Food-safe BPA free Phthalate free No odour retention

The Yumbox Prêt is the premium stainless steel upgrade in the Yumbox family — a sandwich-friendly leakproof bento built for people who want the durability and food-safety of stainless steel with the convenience of a well-organised bento layout. The large main compartment fits a standard full sandwich alongside sides, while the round dip well and two smaller sections give you space for a genuinely complete, balanced lunch.

With a 3.4-cup capacity (800mL), the Prêt is generous enough for bigger kids, teens and adults. It is compact enough to fit most lunch bags at 22.8 x 17.8 x 5cm, and at 520g it is surprisingly lightweight for a stainless steel box. The innovative silicone sealing lid keeps each section separate and leakproof. Available in four clean, stylish colours.

Compartment layout — what fits where

The Prêt layout (as shown in the image)

Large section

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Full sandwich + main item

Fits a standard-sized sandwich, wrap, quesadilla or larger main. The spacious layout is what sets the Prêt apart.

🥪 Sandwich 🌯 Wrap 🍝 Pasta 🥗 Salad

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Top section

Fruit, berries, veggies

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Round dip well

Hummus, dips, yoghurt

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Bottom section

Crackers, cheese, snacks

3.4-cup total capacity — suits bigger appetites in older kids, teens and adults

ℹ️ About the leakproof seal

The silicone lid seals each compartment individually — great for dips, hummus and thicker wet foods. It is not suitable for thin liquids or runny sauces. For best results, avoid packing watery foods directly into the compartments.

Prêt vs Panino — which one?

Quick comparison

🔩 Yumbox Prêt — choose this for:

Premium stainless steel interior

3.4 cups / 800mL (slightly larger)

No plastic contact with food

Maximum durability & longevity

Older kids, teens & adults

🟢 Yumbox Panino — choose this for:

Lightweight BPA-free plastic

3.2 cups / 760mL

Wide range of fun lid designs

More affordable price point

Kids and everyday family use

At a glance

3.4cups

capacity (800mL)

304
Steel

18/8 grade

520g

lightweight

colour options

Why it stands out

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18/8 · 304-grade stainless steel

Food-safe premium steel that won't stain, warp or hold smells — a more durable, long-lasting alternative to plastic.

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Fits a full sandwich

The large main compartment is sized for a real sandwich — not a half sandwich, a real one with crusts.

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Leakproof per compartment

Silicone lid seals each section individually — dips, hummus and wet foods stay separated and contained.

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Compact & lightweight

At 520g and 22.8 x 17.8 x 5cm, it fits most standard lunch bags without being heavy or bulky.

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BPA & phthalate free

Food-safe throughout — no harmful plasticisers, no BPA. Safe for kids, teens and adults every day.

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Sustainable & reusable

Stainless steel is one of the most durable and recyclable materials — a long-term investment over cheap plastic alternatives.

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Easy care

Hand wash recommended. Dishwasher safety tested on the top rack at normal cycle (60°C / 140°F).

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4 stylish colours

Choose from four clean, modern lid colours to match your style — practical and good-looking at the same time.

Great for packing

🥪 Full sandwiches 🌯 Wraps 🍝 Pasta & salads 🥗 Leftovers 🍎 Fruit 🥕 Veggie sticks 🧀 Cheese & crackers 🫙 Hummus & dips 🫐 Berries

Specifications

Capacity	3.4 cups / 800mL
Layout	1 large compartment + 1 round dip well + 2 smaller compartments
Dimensions	22.8cm × 17.8cm × 5cm (9 × 7 × 2 inches)
Weight	520g (1.1 lbs)
Material	18/8, 304-grade stainless steel
Safety	BPA free and phthalate free
Seal	Leakproof silicone lid — seals each compartment
Care	Hand wash recommended. Dishwasher safe top rack at 60°C / 140°F
Leakproof note	Suitable for thicker wet foods — not for thin liquids
Colours	Available in 4 colours

Perfect for

🎒 School lunches 💼 Work lunches ✈️ Travel 🧑‍🎓 Older kids & teens 👨‍👩‍👧 Family use 🥪 Sandwich lovers 🌿 Plastic-free families 🎁 Quality gift 🔩 Steel upgrade from plastic

Common questions

Is the Yumbox Prêt leakproof?

Yes. The Yumbox Prêt features an innovative silicone sealing lid that keeps each compartment separate and leakproof for thicker wet foods. It is not suitable for thin liquids or runny sauces.

Is the Yumbox Prêt stainless steel?

Yes. The Yumbox Prêt is made from premium 18/8, 304-grade food-safe stainless steel. It is BPA free and phthalate free throughout.

Does the Yumbox Prêt fit a full sandwich?

Yes. The large main compartment is designed to fit a standard full sandwich alongside sides in the smaller compartments.

What is the capacity of the Yumbox Prêt?

The Yumbox Prêt has a 3.4-cup capacity (800mL), making it a great option for bigger appetites in older kids, teens and adults.

Is the Yumbox Prêt dishwasher safe?

Hand washing is recommended to maintain the silicone seal. It has been dishwasher safety tested on the top rack at normal cycle (140°F / 60°C).

What is the difference between the Yumbox Prêt and the Yumbox Panino?

Both are sandwich-friendly Yumbox lunchboxes. The Prêt is made from premium 304-grade stainless steel with a larger 3.4-cup capacity (800mL). The Panino is made from BPA-free plastic with a 3.2-cup capacity (760mL). Choose the Prêt for a stainless steel, plastic-free option with greater durability.

About Yumbox

Yumbox

Yumbox is a women-owned brand known for reusable, leakproof bento lunchboxes designed to make healthy meal packing simple and enjoyable. With thoughtful portion-control layouts and waste-reducing designs, Yumbox helps families pack fresh, balanced lunches with less mess and less stress.