---
product_id: 411696973
title: "Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Non-BPA Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Baby Cup Bundle for Kids (2pc Set)"
brand: "zak designs"
price: "$64.07"
currency: USD
in_stock: true
category: "Zak Designs"
url: https://www.desertcart.us/products/411696973-zak-designs-kelso-tumbler-set-15-oz-unicorn-non-bpa
store_origin: US
region: United States of America
---

# Leak-proof valve straw - zero spills guaranteed 15 oz capacity - just right for growing kids BPA-free & dishwasher safe - safe & sustainable Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Non-BPA Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Baby Cup Bundle for Kids (2pc Set)

**Brand:** zak designs
**Price:** $64.07
**Availability:** ✅ In Stock

## Summary

> 🦄 Sip in style, spill no more – hydration just got magical!

## Quick Answers

- **What is this?** Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Non-BPA Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Baby Cup Bundle for Kids (2pc Set) by zak designs
- **How much does it cost?** $64.07 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/411696973-zak-designs-kelso-tumbler-set-15-oz-unicorn-non-bpa)

## 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

- • **Eco-Chic Hydration:** Reusable design replaces disposables, adding a splash of fun with whimsical unicorn prints.
- • **On-the-Go Friendly:** Fits standard car cup holders and is lightweight for busy parents and active kids.
- • **Perfect 15 oz Size:** Ideal volume for toddlers transitioning from sippy cups without constant refills.
- • **Spill-Proof Confidence:** Innovative silicone valve straw prevents leaks and messes, making travel stress-free.
- • **Durable & Safe Materials:** BPA-free plastic and soft silicone straws ensure health-conscious hydration every time.

## Overview

The Zak Designs Kelso Tumbler Set features two 15 oz BPA-free plastic tumblers with soft silicone leak-proof straws designed for toddlers transitioning from sippy cups. Durable, dishwasher safe, and travel-friendly, these unicorn-themed cups combine safety, convenience, and fun to keep kids hydrated without spills 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.

## 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. Long-lasting and BPA free, 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 | Kid |
| Best Sellers Rank | #30,595 in Kitchen ( See Top 100 in Kitchen ) #419 in Tumblers & Water Glasses |
| Brand Name | Zak Designs |
| Capacity | 15 Fluid Ounces |
| Color | purple |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.5 4.5 out of 5 stars (13,014) |
| Finish Types | Glossy |
| Global Trade Identification Number | 00707849124064 |
| Included Components | cups, straws |
| Is the item dishwasher safe? | Yes |
| Is the item microwaveable? | No |
| Item Dimensions W x H | 9.5W x 17.5H centimeters |
| Item Type Name | Todder Cups |
| Item Weight | 159 g |
| Manufacturer | Zak Designs |
| Manufacturer Part Number | 6929-U265 |
| Material Features | BPA-free, durable |
| Material Type | Plastic |
| Material Type Free | BPA Free |
| Model Number | 6929-U265 |
| Number of Items | 1 |
| Occasion | Birthday |
| Other Special Features of the Product | Leak Proof |
| Pattern | Animal Print |
| Product Care Instructions | Dishwasher Safe, Hand Wash Only |
| Product Style | Drinkware |
| Recommended Uses For Product | Home |
| Reusability | Reusable |
| Shape | Cylindrical |
| Size | 15 Ounces |
| Specific Uses For Product | Cold Drinks |
| Subject Character | Unicorn |
| Theme | Fantasy |
| UPC | 707849124064 |
| Unit Count | 2.0 Count |

## Product Details

- **Brand:** Zak Designs
- **Capacity:** 15 Fluid Ounces
- **Colour:** purple
- **Material:** Plastic
- **Special features:** Leak Proof

## Images

![Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Non-BPA Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Baby Cup Bundle for Kids (2pc Set) - Image 1](https://m.media-amazon.com/images/I/71IIrNpEuXL.jpg)
![Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Non-BPA Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Baby Cup Bundle for Kids (2pc Set) - Image 2](https://m.media-amazon.com/images/I/717YYSIfPkL.jpg)
![Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Non-BPA Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Baby Cup Bundle for Kids (2pc Set) - Image 3](https://m.media-amazon.com/images/I/81YDVCQIIQL.jpg)
![Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Non-BPA Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Baby Cup Bundle for Kids (2pc Set) - Image 4](https://m.media-amazon.com/images/I/71XRr0aR15L.jpg)
![Zak Designs Kelso Tumbler Set 15 oz, (Unicorn) Non-BPA Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Baby Cup Bundle for Kids (2pc Set) - Image 5](https://m.media-amazon.com/images/I/71pGHIPZcTL.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.

## 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 United States of America*
*Store origin: US*
*Last updated: 2026-07-12*