---
product_id: 22135043
title: "Ecolunchbox Seal Cup Trio – 3‑Piece Nesting Stainless Steel Leak‑Proof Container Set (40 oz Total) with Silicone Lids – Plastic‑Free, Non‑Toxic, Dishwasher & Oven Safe"
brand: "ecolunchbox"
price: "$77.74"
currency: USD
in_stock: true
reviews_count: 10
category: "Ecolunchbox"
url: https://www.desertcart.us/products/22135043-ecolunchbox-seal-cup-trio-3-piece-nesting-stainless-steel-leak
store_origin: US
region: United States of America
---

# 3-piece nesting & stacking 40 oz total capacity Dishwasher safe lids & containers Ecolunchbox Seal Cup Trio – 3‑Piece Nesting Stainless Steel Leak‑Proof Container Set (40 oz Total) with Silicone Lids – Plastic‑Free, Non‑Toxic, Dishwasher & Oven Safe

**Brand:** ecolunchbox
**Price:** $77.74
**Availability:** ✅ In Stock

## Summary

> 🌿 Elevate your lunch game with eco-friendly style and spill-proof peace of mind!

## Quick Answers

- **What is this?** Ecolunchbox Seal Cup Trio – 3‑Piece Nesting Stainless Steel Leak‑Proof Container Set (40 oz Total) with Silicone Lids – Plastic‑Free, Non‑Toxic, Dishwasher & Oven Safe by ecolunchbox
- **How much does it cost?** $77.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/22135043-ecolunchbox-seal-cup-trio-3-piece-nesting-stainless-steel-leak)

## Best For

- ecolunchbox enthusiasts

## Why This Product

- Trusted ecolunchbox brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Effortless Clean-Up:** Dishwasher safe lids and containers mean no more hand washing hassles
- • **Eco-Chic Ocean Motif:** Stylish embossed lids celebrate sustainability and ocean conservation
- • **Leak-Proof Confidence:** Silicone lids lock in freshness and prevent spills on the go
- • **Compact Nesting Design:** Three containers nest seamlessly to save precious cupboard space
- • **Plastic-Free Powerhouse:** 100% BPA-free stainless steel & silicone for a toxin-free lunch experience

## Overview

The Ecolunchbox Seal Cup Trio is a 3-piece, plastic-free food storage set made from durable 18/8 stainless steel with leak-proof silicone lids. Offering a total 40 oz capacity across three nesting containers, it’s designed for compact storage and easy transport. Dishwasher safe and BPA-free, this set combines sustainability with convenience, perfect for professionals seeking a stylish, eco-conscious lunch solution.

## Description

Say Goodbye to Plastic Durable, food-safe stainless steel Healthy for people & planet Visit the Store Healthy for people & planet Visit the Store About ECOlunchbox ECOlunchbox was founded in 2008 to educate, inspire and empower people to say goodbye to plastic. Our products are healthy for people & planet. We specialize in plastic-free food containers, lunchboxes and bentos made from stainless steel and silicone. About ECOlunchbox ECOlunchbox was founded in 2008 to educate, inspire and empower people to say goodbye to plastic. Our products are healthy for people & planet. We specialize in plastic-free food containers, lunchboxes and bentos made from stainless steel and silicone. Bento Insulated Canister The vacuum insulated 12 ounce container will keep food hot or cold for 8+ hours. Bento Insulated Canister The vacuum insulated 12 ounce container will keep food hot or cold for 8+ hours. Tri-Bento Stainless steel lunchbox with three layers that stack and clip together Tri-Bento Stainless steel lunchbox with three layers that stack and clip together Seal Cup XL This stainless steel container with no-leak silicone lid hold 26 oz. (3.25 cups) Seal Cup XL This stainless steel container with no-leak silicone lid hold 26 oz. (3.25 cups) Seal Cup Trio Three-piece nesting lunch container set ideal for packing a variety of foods and keeping them separate. Seal Cup Trio Three-piece nesting lunch container set ideal for packing a variety of foods and keeping them separate.

Review: Leakproof! - Yes, these are it! These really are leakproof!!! Filled one with water and shook several times and not a drop came out. Nicely lightweight - about the weight of store-brand tupperware containers. Had bought two other varieties of SS containers and both had raw exposed edges and these ones have nice, rolled edges with no raw material showing through. Excellent design and I feel safe to store my toddler's food in them. Edit: Have used these almost daily for the last few weeks and so far no complaints. They indeed are leakproof. Noticed a metallic taste to greek yogurt after storing for maybe two hours, but perhaps that is to be expected given that acidic foods will acquire a metallic taste from stainless steel. Edit 2: Now almost a year after purchasing and daily use, I have not had the metallic taste reoccur after that first time, despite still storing frozen blueberries or raspberries with yogurt all the time (a rather acidic mixture). My toddler has dropped these many times and they are still perfectly dent-less. And I've never had a leak. I am now buying a second set because we use these so much. I have also become much more savvy about SS products, and love that these are a very high grade of stainless steel (i.e. will not rust).
Review: Great containers - These are great! I wish the seal was better.

## Features

- NESTING 3-PIECE PLASTIC-FREE, LUNCH CONTAINER SET: Plastic-free and leak-proof, the Seal Cup Trio is three-piece nesting food container set made from 18/8 stainless steel topped with silicone lids. All together, the three containers have a total capacity of 40 oz. (5 cups). The Seal Cup Large container (orange lid) capacity is 20 oz. (2.5 cups). The Seal Cup Medium container (blue lid) capacity is 12 oz. (1.5 cups). The Seal Cup Small (teal lid) capacity is 7 oz.
- NESTS & STACKS: Container nests and stacks one inside the other for compact storage in your cupboard. Real Simple Magazine selected the Blue Water Bento container collection as the best eco-friendly bentos for compact storage. Each container features an embossed ocean motif on its colorful lid. The ocean designs celebrate ECOlunchbox’s mission to make your lunches greener and keeps our oceans bluer by eliminating dangerous plastics from lunchtime.
- 100% PLASTIC FREE, NON BREAKABLE & BPA-FREE: Made from the highest quality 18/8 stainless steel and silicone components. Steel and silicone container is lighter than comparable glass container and virtually nonbreakable. Our stainless steel food containers are third party independently tested for food safety compliance with USA and EU standards.
- DISHWASHER SAFE: All parts of our metal and silicone bento boxes are dishwasher safe, including the lid! No need to hand wash silicone lids separately from the container bases like with other brands with lids made from plastic or with embedded gunky gaskets.
- TRUSTED MISSION-BASED BRAND: California eco mom and environmentalist Sandra Ann Harris designed the original ECOlunchbox stainless steel food container more than 10 years ago to pack lunches for her two young children. The woman-owned company continues as a mission-based, family-owned business dedicated to helping people reduce their dependence on plastics for health and environmental reasons. We stand behind our products and offer a one-year limited warranty against manufacturer’s defects.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01722DR2G |
| Best Sellers Rank | #169,092 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #3,597 in Food Container Sets |
| Brand | Ecolunchbox |
| Brand Name | Ecolunchbox |
| Capacity | 1.3 Pounds, 12 ounces, 2.5 Pounds |
| Closure Type | Snap |
| Color | Blue |
| Container Shape | Round |
| Customer Reviews | 4.7 out of 5 stars 69 Reviews |
| Is the item dishwasher safe? | Yes |
| Is the item microwaveable? | No |
| Item Dimensions L x W x H | 4.75"L x 4.75"W x 2.25"H |
| Item Form | Lidded |
| Item Volume | 40 Fluid Ounces |
| Item Weight | 9.6 Ounces |
| Material Feature | Food Grade, Freezer Safe, Microwave Safe, Natural, Reusable |
| Material Features | Food Grade, Freezer Safe, Microwave Safe, Natural, Reusable |
| Material Type Free | BPA Free |
| Other Special Features of the Product | Leak Resistant |
| Package Quantity | 3 |
| Product Care Instructions | Dishwasher Safe |
| Product Dimensions | 4.75"L x 4.75"W x 2.25"H |
| Recommended Uses For Product | Cold food, Dessert, Dry foods, Fruit, Hot food, Meat, Salad, Sandwiches, Snacks, Soup, Vegetable |
| Size | 4.75 Inches X 2.25 Inches |
| UPC | 718122783298 |
| Unit Count | 3.0 Count |

## Product Details

- **Brand:** Ecolunchbox
- **Color:** Blue
- **Material Feature:** Reusable, Freezer Safe, Microwave Safe, Natural, Food Grade
- **Capacity:** 12 ounces, 1.3 Pounds, 2.5 Pounds
- **Product Dimensions:** 4.75"L x 4.75"W x 2.25"H

## Images

![Ecolunchbox Seal Cup Trio – 3‑Piece Nesting Stainless Steel Leak‑Proof Container Set (40 oz Total) with Silicone Lids – Plastic‑Free, Non‑Toxic, Dishwasher & Oven Safe - Image 1](https://m.media-amazon.com/images/I/71U7KO9FoVL.jpg)
![Ecolunchbox Seal Cup Trio – 3‑Piece Nesting Stainless Steel Leak‑Proof Container Set (40 oz Total) with Silicone Lids – Plastic‑Free, Non‑Toxic, Dishwasher & Oven Safe - Image 2](https://m.media-amazon.com/images/I/516JBZPGDrL.jpg)
![Ecolunchbox Seal Cup Trio – 3‑Piece Nesting Stainless Steel Leak‑Proof Container Set (40 oz Total) with Silicone Lids – Plastic‑Free, Non‑Toxic, Dishwasher & Oven Safe - Image 3](https://m.media-amazon.com/images/I/71WVn3OGuDL.jpg)
![Ecolunchbox Seal Cup Trio – 3‑Piece Nesting Stainless Steel Leak‑Proof Container Set (40 oz Total) with Silicone Lids – Plastic‑Free, Non‑Toxic, Dishwasher & Oven Safe - Image 4](https://m.media-amazon.com/images/I/71vUVTrbi9L.jpg)
![Ecolunchbox Seal Cup Trio – 3‑Piece Nesting Stainless Steel Leak‑Proof Container Set (40 oz Total) with Silicone Lids – Plastic‑Free, Non‑Toxic, Dishwasher & Oven Safe - Image 5](https://m.media-amazon.com/images/I/81fSMathtCL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Leakproof!
*by S***Y on October 12, 2019*

Yes, these are it! These really are leakproof!!! Filled one with water and shook several times and not a drop came out. Nicely lightweight - about the weight of store-brand tupperware containers. Had bought two other varieties of SS containers and both had raw exposed edges and these ones have nice, rolled edges with no raw material showing through. Excellent design and I feel safe to store my toddler's food in them. Edit: Have used these almost daily for the last few weeks and so far no complaints. They indeed are leakproof. Noticed a metallic taste to greek yogurt after storing for maybe two hours, but perhaps that is to be expected given that acidic foods will acquire a metallic taste from stainless steel. Edit 2: Now almost a year after purchasing and daily use, I have not had the metallic taste reoccur after that first time, despite still storing frozen blueberries or raspberries with yogurt all the time (a rather acidic mixture). My toddler has dropped these many times and they are still perfectly dent-less. And I've never had a leak. I am now buying a second set because we use these so much. I have also become much more savvy about SS products, and love that these are a very high grade of stainless steel (i.e. will not rust).

### ⭐⭐⭐⭐⭐ Great containers
*by F***4 on September 14, 2025*

These are great! I wish the seal was better.

### ⭐⭐⭐⭐⭐ My new favorite containers!
*by R***Y on April 25, 2016*

These are seriously the BEST containers I have ever used. I love that the lids are silicone, not plastic. I avoid plastic when it comes to food, but I also like the silicone because it you pack slightly more than the size of the containers, the lid will still conform to the containers, with just a small bump across the top. These containers are leakproof as advertised. I have ran them through my dishwasher several times and I have had no issues. I have not used any of the pieces in the oven so I can't say anything about that part. The containers are spacious. If you see the picture grid I added, you can see that the smallest container easily holds the segments of THREE Mandarin oranges with room to spare. If you look closely at the picture grid, you can see that I slightly overfilled the medium container and you can see what I mean about the silicone lid conforming to the shape. In the picture grid, I sliced an entire Bell pepper into the largest container, and there is room to spare! These containers hold a lot and I continue to be impressed with them. I have used other products by this company and so far, this is definitely my favorite. I received a free set in exchange for my honest opinion about it.

## Frequently Bought Together

- Ecolunchbox Seal Cup Trio 3-Piece Nesting Stainless Steel Leak-Proof Food Storage Containers
- Ecolunchbox Splash Pod Stainless Steel Leak-Proof Snack Container (1)
- ECOlunchbox Splash Box Leakproof Stainless Bento Lunch Container With Silicone Lid | Holds 3 Cups (equivalent to 24 oz & 709 ml) | Measures 6.5 x 4.75 x 2 inches (16.5 x 12 x 5 cm) | 100% Plastic-Free

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-11*