---
product_id: 425426124
title: "3-Piece Kelso Set"
brand: "zak designs"
price: "€ 45.47"
currency: EUR
in_stock: true
reviews_count: 13
category: "Zak Designs"
url: https://www.desertcart.de/products/425426124-3-piece-kelso-set
store_origin: DE
region: Germany
---

# Leak-proof valve straw Kid-friendly 15oz & 12oz sizes BPA-free durable materials 3-Piece Kelso Set

**Brand:** zak designs
**Price:** € 45.47
**Availability:** ✅ In Stock

## Summary

> 💦 Sip in Style, Spill No More!

## Quick Answers

- **What is this?** 3-Piece Kelso Set by zak designs
- **How much does it cost?** € 45.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/425426124-3-piece-kelso-set)

## Best For

- zak designs enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Sustainable:** BPA-free, reusable design supports eco-conscious families and daily use without compromise.
- • **Effortless Cleaning:** Dishwasher-safe lids and plastic cup simplify busy parents’ routines; stainless steel tumbler hand wash recommended.
- • **Kid-Approved Comfort:** Soft silicone straws designed for easy sipping, ideal for toddlers transitioning from sippy cups.
- • **Spill-Proof Hydration:** Innovative silicone valve straws prevent leaks and messes, perfect for on-the-go parents.
- • **Dual-Material Durability:** Includes both lightweight plastic and insulated stainless steel tumblers for every adventure.

## Overview

The Zak Designs CoComelon Kelso Tumbler Set is a 3-piece BPA-free hydration bundle featuring a 15oz plastic tumbler, a 12oz double-wall stainless steel tumbler, and an extra silicone straw sipper. Designed with leak-proof valve straws and durable materials, this set is perfect for toddlers transitioning from sippy cups, offering spill-proof convenience at home or on the go. Dishwasher-safe components and kid-friendly design make hydration fun, safe, and sustainable.

## Description

This leak-proof tumbler set from Zak Designs makes hydration fun for any fan of CoComelon! Durable Materials: The set includes two different tumblers, one made from plastic and one made with double-wall stainless steel; both are durable enough to use every day. The comfortable straws are made from silicone, and everything is completely BPA free. Leak-Proof Straw: The straw has a built-in valve that allows liquid to flow when drinking and prevents spills when the tumbler is tipped over. It's perfect for travel or for young children graduating from sippy cups. Hydrate Anywhere: Choose lightweight plastic or double-wall stainless steel, whichever suits the situation! The tumblers won't splash or leak, making them ideal to take on the go. At home, you don't have to worry about spills around papers or electronics, and drinks stay easily accessible through the straw. Specifications: 1 plastic tumbler (15 oz), 1 stainless steel tumbler (12 oz), 1 additional sipper and straw. Made of durable plastic, stainless steel, and silicone. BPA-Free - Zak is committed to safety. Lids and plastic tumbler are top rack dishwasher safe, hand wash stainless steel tumbler; do not microwave. Character: CoComelon.

Review: My FAVORITE sippy cup for transitioning my toddler! - I was in the market for some toddler cups since my little one needs to transition away from bottles. I bought a couple different types but these Zak cups are BY FAR my favorite! They were highly recommended by a lot of parents and specialists on TikTok. The price is fair for the quality of the materials. I got the set with a steel tumbler and a plastic cup so I could compare (and avoid plastic when possible). They are both high quality, super easy to wash, are dishwasher safe, and the designs are exactly as pictured. My daughter does really well with these, and the straw top is a soft silicone so she gets to teethe on it too. I usually don't add the plastic straw because my kiddo likes to tip the cup back like it's a bottle. These cups are pretty leak-proof! She can spill an occasional drop or two here and there but it's no different than how much she would spill with her bottle. The only thing that I can call a con is the fact that these don't have handles, which I think would make it easier for my kiddo to hold, but she manages fine without them for the most part. Also, the steel tumblers are heavy and could do some damage if dropped on a foot or flung into a wall (she's in a throwing stage) so we only use them with close supervision. If you are looking for a cup to transition your baby away from bottles, I would definitely recommend these! So far, these are my daughters (and my) favorite cup. I have already bought 2 more sets. Hope this helps!
Review: Perfect Tumbler Set for Dino-Loving Kids - I bought the Zak Designs Dino Camo Kelso Tumbler 3pc Set for my two grandkids, and they love it! The fun dino design is a hit, and I love how practical it is—leak-proof lids, durable plastic and stainless steel, and the straws are perfect for little ones. Easy to clean and great for travel or home. A great combo of fun and functionality. Highly recommend for kids on the go

## Features

- MATERIAL: The durable tumblers are made of plastic and stainless steel with silicone straws. Long-lasting and BPA free, the lids and plastic tumbler are top rack dishwasher safe, while the stainless steel tumbler should be hand washed. Do not microwave.
- SIZE: The set contains two tumblers and one additional sipper and straw. The plastic tumbler has a capacity of 15 ounces and the double-wall stainless steel tumbler has a capacity of 12 ounces.
- LEAK-PROOF DESIGN: Each silicone straw has a built-in valve that allows liquid to flow when drinking and prevents accidental spills when the tumbler is tipped over. The straw is also soft and comfortable for kids to drink from.
- AT HOME OR ON THE GO: The straw tumblers are suited for travel, since they won't leak while keeping drinks easily accessible. They're also great for drinking beverages at home without worrying about spilling on papers or electronics.
- LIFESTYLE: Zak Designs drinkware makes hydration a fun part of your daily routine! These CoComelon tumblers are great for kids just graduating from sippy cups. The tumblers are fully reusable--no more disposable cups--and you can choose the material that best suits the situation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09TVS68VJ |
| Age Range Description | Kid 3+ |
| Best Sellers Rank | #2,312 in Baby ( See Top 100 in Baby ) #80 in Toddler Cups |
| Brand Name | Zak Designs |
| Capacity | 15 Fluid Ounces |
| Color | CoComelon |
| Customer Reviews | 4.6 4.6 out of 5 stars (6,582) |
| Finish Types | Painted |
| Global Trade Identification Number | 00707849147582 |
| Included Components | 12oz Stainless Steel Tumbler X 1, 15oz PP Tumbler X 1, Additional Sipper X 1 |
| Is the item dishwasher safe? | Yes |
| Item Dimensions W x H | 3.74"W x 6.89"H |
| Item Type Name | Bundle for Kids Includes Plastic and Stainless Steel Cups with Additional Sipper |
| Item Weight | 0.71 Pounds |
| Manufacturer | Zak Designs |
| Manufacturer Part Number | CCMD-W330 |
| Material Features | Food Safe, Insulated |
| Material Type | Plastic, Silicone, Stainless Steel |
| Material Type Free | BPA Free |
| Model Number | CCMD-W330 |
| Number of Items | 2 |
| Occasion | Back To School, Birthday, Christmas, Easter |
| Other Special Features of the Product | Additional Straw, Insulated, Reusable, Splash-Proof, Vacuum Insulated |
| Pattern | Solid |
| Product Care Instructions | Dishwasher Safe, Hand Wash Only |
| Product Style | Classic |
| Recommended Uses For Product | Home, Travel |
| Reusability | Reusable |
| Shape | Round |
| Size | 3 Piece Set (Pack of 1) |
| Theme | Travel |
| UPC | 707849147582 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Zak Designs
- **Capacity:** 15 Fluid Ounces
- **Color:** CoComelon
- **Material:** Plastic, Silicone, Stainless Steel
- **Special Feature:** Additional Straw, Insulated, Reusable, Splash-Proof, Vacuum Insulated

## Images

![3-Piece Kelso Set - Image 1](https://m.media-amazon.com/images/I/71lAmU52M6L.jpg)

## Available Options

This product comes in different **Color, Size, Style** options.

## Questions & Answers

**Q: Is there a silicone boot that fits the stainless steal cup to prevent dings?**
A: We do not currently make these but are looking at adding in the near future.

**Q: Can i sterilize the plastic cup and its lid in the baby bottle sterilizer?**
A: We are not sure, we have not tested it for this.

**Q: Do you have to bite the straw to get get it to work? Or is it like a typical silicone straw?**
A: You can do it without biting but a little pressure will make a better flow.

**Q: Age group?**
A: These are for 3+.

## Customer Reviews

### ⭐⭐⭐⭐⭐ My FAVORITE sippy cup for transitioning my toddler!
*by L***E on August 4, 2024*

I was in the market for some toddler cups since my little one needs to transition away from bottles. I bought a couple different types but these Zak cups are BY FAR my favorite! They were highly recommended by a lot of parents and specialists on TikTok. The price is fair for the quality of the materials. I got the set with a steel tumbler and a plastic cup so I could compare (and avoid plastic when possible). They are both high quality, super easy to wash, are dishwasher safe, and the designs are exactly as pictured. My daughter does really well with these, and the straw top is a soft silicone so she gets to teethe on it too. I usually don't add the plastic straw because my kiddo likes to tip the cup back like it's a bottle. These cups are pretty leak-proof! She can spill an occasional drop or two here and there but it's no different than how much she would spill with her bottle. The only thing that I can call a con is the fact that these don't have handles, which I think would make it easier for my kiddo to hold, but she manages fine without them for the most part. Also, the steel tumblers are heavy and could do some damage if dropped on a foot or flung into a wall (she's in a throwing stage) so we only use them with close supervision. If you are looking for a cup to transition your baby away from bottles, I would definitely recommend these! So far, these are my daughters (and my) favorite cup. I have already bought 2 more sets. Hope this helps!

### ⭐⭐⭐⭐⭐ Perfect Tumbler Set for Dino-Loving Kids
*by E***N on August 4, 2025*

I bought the Zak Designs Dino Camo Kelso Tumbler 3pc Set for my two grandkids, and they love it! The fun dino design is a hit, and I love how practical it is—leak-proof lids, durable plastic and stainless steel, and the straws are perfect for little ones. Easy to clean and great for travel or home. A great combo of fun and functionality. Highly recommend for kids on the go

### ⭐⭐⭐⭐⭐ Best toddler cups
*by D***E on January 23, 2026*

Love the Zak cups. Now that my toddler is 2.5 I wish they were larger so we didn’t have to fill it up while out and about for several hours, but they’re a great size for younger than her because that’s only a recent problem. The design comes off slowly in the dishwasher, I’m not too worried about this but some may care about that. The stainless steel are my favorite, I prefer them over the plastic just since it’s healthier but I still have a couple plastic ones. My daughter loves blue and baby shark so they were the perfect for her. We take these with us everyone on the go and they almost never leak. We only own Zak cups and have used them since 6 months old.

## Frequently Bought Together

- Zak Designs CoComelon Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw, Bundle for Kids Includes Plastic and Stainless Steel Cups with Bonus Sipper (3pc Set, Non-BPA), 15 fluid ounces
- The First Years CoComelon Dinnerware Set - Toddler Plates and Toddler Utensils- 4 Count

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-05-16*