ECOlunchbox Solo Cube Stainless Steel Lunch Container, 21 oz – 5.25″ Square

Price: $25.00
(as of Oct 15, 2026 23:28:54 UTC – Details)

Product description

Simple. Durable. Reusable

The Everyday Stainless Steel Lunch Box

Squish-resistant stainless steel keeps sandwiches & snacks protected wherever the day leads.

One Box, Endless Ideas

Perfect for Balanced Meals and Snacks

Pack sandwiches, fruit, vegetables, & snacks together in one durable container that’s easy to clean.

Harvest to Table

Carry Fresh Ingredients with Confidence

The sturdy stainless steel design is perfect for fresh produce and garden harvests.

Ready Every Day

Enjoy Homemade Meals Wherever You Go

A roomy 2.5-cup container makes it easy to pack satisfying lunches while reducing single-use waste.

Snacks Ready to Go

Perfect for Homemade Snacks and Treats

Store energy bites, bars, cookies, or fruit in a reusable stainless steel container made to last.

1 Built for Every Journey

2 Pack It Your Way

3 Freshly Picked

4 Lunch Made Simple

5 More Than Lunch

Pack Fresh Favorites for Every Adventure

Whether you’re headed to a picnic, the park, or a weekend getaway, the Solo Cube keeps sandwiches, fresh fruit, and snacks organized in one durable container. Made from 100% stainless steel, it’s a reusable alternative to disposable bags and plastic containers.

Create Fresh, Colorful Meals with Ease

The spacious 21 oz Solo Cube is perfect for packing sandwiches, fruits, vegetables, wraps, and snacks. Pair it with reusable silicone cups to separate foods and create balanced meals while reducing waste with every use.

Ready for Trails, Travel & Everyday Life

Strong enough for outdoor adventures and lightweight enough for everyday use, the Solo Cube is built from durable stainless steel that won’t crack like plastic. Pack healthy snacks and meals wherever your day takes you.

The Reusable Container You’ll Reach for Every Day

From work lunches to afternoon snacks and leftovers, the Solo Cube is designed for daily use. Dishwasher safe and built from food-grade stainless steel, it offers a simple, long-lasting way to reduce single-use packaging.

What material is the Solo Cube made of?

It’s made entirely from food-grade stainless steel, including the lid, so it’s 100% plastic-free! Because there’s no plastic, it’s free of the estrogen-mimicking chemicals found in plastic containers, including BPA, BPS, and phthalates.

How much food does it hold?

21 oz, or about 2.5 cups. It measures 5¼ inches square by 2 inches deep. The square shape is sized for a standard sandwich, and it’s also great for pasta salad, cut fruit, and leftovers.

Is it dishwasher and microwave safe?

It’s fully dishwasher safe, but as with all stainless steel, it can’t be used in a microwave. You can reheat food in an oven or over a campstove instead.

Will it dent, crack, or break?

The Solo Cube is rugged and squish-proof. It won’t crack or shatter like plastic or glass, so it holds up to daily use and travel.

Who is the Solo Cube best for?

Packing sandwiches and snacks for work, picnics, hikes, or travel. The Solo Cube has no gasket, so it’s best for dry or firm foods rather than soup or sauce.

Square & Compact, Yet Roomy – Measures approximately 5¼” × 5¼” × 2″ and holds around 2.5 cups (21 oz), perfect for sandwiches, pasta salad, fruits, or leftovers.
Durable 100% Stainless Steel – Made from food-safe, non-toxic stainless steel, it’s BPA-, BPS-, and phthalate-free, ensuring longevity and safe usage.
Lightweight & Squish‑Proof – Weighing just 8.5 oz (tare weight), the Solo Cube is both sturdy and lightweight—ideal for daily use or packing into a lunch bag without extra bulk.
Dishwasher-Safe & Plastic-Free – Fully dishwasher-safe without hidden plastics, offering easy clean-up and a completely eco-friendly dining experience.
Not Leak‑Proof, but Versatile – With no gasket, it’s not suitable for saucy or liquid foods—but its simple, secure lid is great for solid meals that don’t need airtight sealing.
Customers find the lunch container excellent for daily sandwiches and appreciate its perfect size and capacity, with one mentioning it fits a sandwich plus a side of carrots. The container is sturdy, with one customer noting it can withstand the force of a ski lift. While some customers find it easy to open, others report it’s hard to open, and there are mixed opinions about the lid fit.