---
product_id: 306775000
title: "Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Cup Bundle for Kids (2pc Set)"
brand: "zak designs"
price: "131.47 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Zak Designs"
url: https://www.desertcart.tn/products/306775000-zak-designs-kelso-tumbler-set-15-oz-unicorn-leak-proof
store_origin: TN
region: Tunisia
---

# Leak-proof silicone valve straw – zero spills guaranteed Fits car cup holders – perfect for on-the-go families 15 oz capacity – just right for toddler hydration Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Cup Bundle for Kids (2pc Set)

**Brand:** zak designs
**Price:** 131.47 DT
**Availability:** ✅ In Stock

## Summary

> 🦄 Sip in Style, Spill No More – The Unicorn Tumbler Every Parent & Kid Craves!

## Quick Answers

- **What is this?** Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Cup Bundle for Kids (2pc Set) by zak designs
- **How much does it cost?** 131.47 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/306775000-zak-designs-kelso-tumbler-set-15-oz-unicorn-leak-proof)

## 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

- • **Kid-Approved Fun:** Vibrant unicorn prints make hydration a daily joy and social statement
- • **Travel-Ready Design:** Compact 15 oz tumblers fit seamlessly into car cup holders and diaper bags
- • **Spill-Proof Confidence:** Innovative silicone valve straw stops leaks even when tipped or tossed
- • **Eco-Friendly & Reusable:** Say goodbye to disposables with fully reusable, easy-to-clean tumblers
- • **Hydration Meets Durability:** Robust plastic build withstands toddler tumbles and dishwasher cycles

## Overview

The Zak Designs Kelso Tumbler Set features two 15 oz durable plastic tumblers with leak-proof silicone valve straws designed to prevent spills. Perfectly sized for toddlers, these dishwasher-safe, reusable cups fit car cup holders and come in vibrant unicorn designs that make hydration fun and mess-free at home or on the go.

## Description

This leak-proof tumbler set from Zak Designs makes hydration fun for kids! Durable Materials The tumbler is made from lightweight plastic, and the comfortable straw is made from silicone. Everything is dishwasher safe. 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 The tumbler won't splash or leak and fits in car cup holders, making it ideal to take on the go. At home, you don't have to worry about spills or stains around fabrics or electronics, and drinks stay easily accessible through the straw. Spec. 2 tumblers with 15 oz capacity. Made of durable plastic and silicone. Dishwasher safe, do not microwave. Length: 3.16-inch, Width: 3.16-inch, Height: 6.67-inch. Design: Unicorn.

Review: 🕷️ Perfect for Little Superheroes – Durable, Fun, and Truly Leak-Proof! - If you’ve got a toddler who loves Spider-Man and you’re tired of dealing with messy spills, the Zak Designs Marvel Kelso Toddler Cups are an absolute win. These cups are not only adorable and kid-approved, but also incredibly practical for everyday use—whether at home or on the go. We found these to be our best option due to our super active toddler who will throw it from time to time. Previous cups would start leaking over time but not these cups. They have held up to the abuse and still look like they just came out of the package. ✅ A Parent’s Dream: 🧃 Truly Leak-Proof: We’ve tested a lot of sippy cups over the years, and these are some of the most reliably leak-proof options we’ve found. They don’t drip when tipped, tossed, or even dropped—which makes them ideal for travel, car rides, or playtime chaos. 🕸️ Marvel Design = Instant Hit: The Spidey and His Amazing Friends graphics are vibrant, fun, and a huge hit with any superhero-loving toddler. They love picking their own cup and showing it off to friends. 💪 Built to Last: Made from thick, durable plastic, these cups hold up to toddler drops, dishwasher runs, and heavy use. They don’t crack or fade, and the lids fit securely without being impossible to remove for adults. 🙌 Easy to Use & Clean: The simple design means no extra valves or hard-to-scrub parts. They’re top-rack dishwasher safe and super easy to take apart and reassemble. 🎒 Great for On-the-Go: At 15oz, they’re the perfect size for keeping kids hydrated without being too bulky. They fit well in cup holders and diaper bags. ⚠️ A Few Quick Notes: Not Spill-Proof When Lid Is Off: This seems obvious, but just a reminder—once the lid is off, it’s a regular open cup. But with the lid secured, you’re good to go. Handwashing the Graphics May Prolong Life: We’ve put ours in the dishwasher plenty of times with no issues, but if you want to preserve the bright Spidey designs long-term, occasional handwashing may help. ⭐ Final Rating: 5 / 5 These Zak Spider-Man sippy cups combine fun and function in the best way possible. They’re durable, leak-proof, easy to clean, and your kid will absolutely love drinking from them. A must-have for any toddler who wants to drink like a superhero!
Review: Good purchase - My toddler needed a new milk cup, and we wanted to try something new, so I purchased this Zak Designs cup. We have been using it for only a day, and so far, so good! There are no issues yet. The straw inside is bigger than other brands, which is great. It is a nice plastic cup with a cute Bluey design that my toddler absolutely loves. It has no leaks and is easy to clean. A very good purchase!

## Features

- SIZE: The set contains two tumblers that are 3.16 inches in diameter and 6.67 inches tall. They have a capacity of 15 ounces.
- MATERIAL: The durable tumblers are made of plastic with silicone straws. They're dishwasher safe and should not be microwaved.
- LEAK-PROOF DESIGN: The 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 tumbler is suited for travel, since it won't leak and fits in car cup holders while keeping drinks easily accessible. It's also great for drinking beverages at home without worrying about stains or nearby electronics.
- LIFESTYLE: Zak Designs drinkware makes hydration fun! These colorful tumblers are a great gift for kids just graduating from sippy cups. The tumblers are fully reusable--no more disposable cups--and a fun addition to the daily routine.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08XVXPK5L |
| Age Range Description | Kids 3+ |
| Best Sellers Rank | #23 in Baby ( See Top 100 in Baby ) #1 in Toddler Cups |
| Brand | Zak Designs |
| Brand Name | Zak Designs |
| Capacity | 15 fluid ounces |
| Color | Unicorn |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.6 out of 5 stars 32,019 Reviews |
| Finish Types | Glossy |
| Global Trade Identification Number | 00707849124064 |
| Included Components | Lid |
| Item Dimensions W x H | 3.74"W x 6.89"H |
| Item Type Name | Sippy Cups With Leak-Proof Design is Perfect For Kids |
| Item Weight | 5.6 ounces |
| Manufacturer | Zak Designs |
| Manufacturer Part Number | 6929-U265 |
| Material | Plastic |
| Material Features | Lightweight |
| Material Type | Plastic |
| Material Type Free | Lead Free |
| Model Number | 6929-U265 |
| Number of Items | 1 |
| Occasion | Birthday |
| Other Special Features of the Product | Leak Proof, Soft Straw |
| Pattern | Animal Print |
| Product Care Instructions | Dishwasher Safe, Hand Wash Only |
| Product Style | Drinkware |
| Recommended Uses For Product | Home |
| Reusability | Reusable |
| Set Name | Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) |
| Shape | Round |
| Size | 15 Ounces |
| Special Feature | Leak Proof, Soft Straw |
| Specific Uses For Product | Cold Drinks |
| Style | Drinkware |
| Subject Character | Unicorn |
| Theme | Unicorn |
| UPC | 707849124064 |
| Unit Count | 2 Count |

## Product Details

- **Brand:** Zak Designs
- **Capacity:** 15 fluid ounces
- **Color:** Unicorn
- **Material:** Plastic
- **Special Feature:** Leak Proof, Soft Straw

## Images

![Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Cup Bundle for Kids (2pc Set) - Image 1](https://m.media-amazon.com/images/I/71IIrNpEuXL.jpg)

## Available Options

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

## Questions & Answers

**Q: Does the Kelso prevent spills when the tumbler is tipped over?**
A: Yes, and you don't need to remember to close the lid! The Kelso tumbler has a valve in the spout, which lets water flow freely when kids are drinking, but stops spills if the tumbler is tipped over.

**Q: Is the tumbler easy to clean?**
A: Yes, both the spout on top of the lid and the inner straw underneath the lid are removable to make cleaning easy, and the parts are all dishwasher safe.

**Q: How old should my child be to use the Kelso tumbler?**
A: We recommend this tumbler for kids age 3 and up.

**Q: What kind of drinks can go in the Kelso tumbler?**
A: The Kelso tumbler is perfect for everyday cold beverages like water, milk, or juice. Thick smoothies are a little more difficult to drink with the valve, while carbonated drinks can build pressure and push liquid up through the straw.

**Q: Can I travel with the Kelso?**
A: The Kelso tumbler fits in most car and stroller cup holders for on the go convenience. We don't recommend putting the Kelso tumbler in a bag, as pressing on the soft spout can open the valve and allow drinks to flow out.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 🕷️ Perfect for Little Superheroes – Durable, Fun, and Truly Leak-Proof!
*by J***B on August 6, 2025*

If you’ve got a toddler who loves Spider-Man and you’re tired of dealing with messy spills, the Zak Designs Marvel Kelso Toddler Cups are an absolute win. These cups are not only adorable and kid-approved, but also incredibly practical for everyday use—whether at home or on the go. We found these to be our best option due to our super active toddler who will throw it from time to time. Previous cups would start leaking over time but not these cups. They have held up to the abuse and still look like they just came out of the package. ✅ A Parent’s Dream: 🧃 Truly Leak-Proof: We’ve tested a lot of sippy cups over the years, and these are some of the most reliably leak-proof options we’ve found. They don’t drip when tipped, tossed, or even dropped—which makes them ideal for travel, car rides, or playtime chaos. 🕸️ Marvel Design = Instant Hit: The Spidey and His Amazing Friends graphics are vibrant, fun, and a huge hit with any superhero-loving toddler. They love picking their own cup and showing it off to friends. 💪 Built to Last: Made from thick, durable plastic, these cups hold up to toddler drops, dishwasher runs, and heavy use. They don’t crack or fade, and the lids fit securely without being impossible to remove for adults. 🙌 Easy to Use & Clean: The simple design means no extra valves or hard-to-scrub parts. They’re top-rack dishwasher safe and super easy to take apart and reassemble. 🎒 Great for On-the-Go: At 15oz, they’re the perfect size for keeping kids hydrated without being too bulky. They fit well in cup holders and diaper bags. ⚠️ A Few Quick Notes: Not Spill-Proof When Lid Is Off: This seems obvious, but just a reminder—once the lid is off, it’s a regular open cup. But with the lid secured, you’re good to go. Handwashing the Graphics May Prolong Life: We’ve put ours in the dishwasher plenty of times with no issues, but if you want to preserve the bright Spidey designs long-term, occasional handwashing may help. ⭐ Final Rating: 5 / 5 These Zak Spider-Man sippy cups combine fun and function in the best way possible. They’re durable, leak-proof, easy to clean, and your kid will absolutely love drinking from them. A must-have for any toddler who wants to drink like a superhero!

### ⭐⭐⭐⭐⭐ Good purchase
*by A***R on June 5, 2026*

My toddler needed a new milk cup, and we wanted to try something new, so I purchased this Zak Designs cup. We have been using it for only a day, and so far, so good! There are no issues yet. The straw inside is bigger than other brands, which is great. It is a nice plastic cup with a cute Bluey design that my toddler absolutely loves. It has no leaks and is easy to clean. A very good purchase!

### ⭐⭐⭐⭐⭐ Spill proof and easy to clean
*by L***O on July 6, 2026*

The best cups so far. My toddler loves them . Best for thicker fluids,and water for my baby. Spill proof and easy to clean. Ordering another set soon. Soft outer straw so you dont have to worry about it hurting baby. He can use it while standing or rolling on the floor

## Frequently Bought Together

- Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Cup Bundle for Kids (2pc Set)
- Zak Designs 15oz Bluey Kelso Tumbler Set, Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Bundle for Kids, 2 Count (Pack of 1)
- Zak Designs Sesame Street Kelso Toddler Tumblers For Travel or At Home, 15oz 2-Pack Durable Plastic Sippy Cups With Leak-Proof Design is Perfect For Kids (Elmo and Cookie Monster)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-19*