---
product_id: 441512726
title: "Zak Designs Kelso 15 oz Tumbler Set, ( Underwater ) 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: "R$794"
currency: BRL
in_stock: true
reviews_count: 5
category: "Zak Designs"
url: https://www.desertcart.com.br/products/441512726-zak-designs-kelso-15-oz-tumbler-set-underwater-non-bpa
store_origin: BR
region: Brazil
---

# Leak-proof valve straw - no spills, no stress 15 oz capacity - just right for growing kids BPA-free & reusable - safe and eco-friendly Zak Designs Kelso 15 oz Tumbler Set, ( Underwater ) 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:** R$794
**Availability:** ✅ In Stock

## Summary

> 💧 Sip in Style, Spill No More!

## Quick Answers

- **What is this?** Zak Designs Kelso 15 oz Tumbler Set, ( Underwater ) 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?** R$794 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/441512726-zak-designs-kelso-15-oz-tumbler-set-underwater-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

- • **Durable & Safe Materials:** BPA-free plastic and soft silicone straws ensure safety and long-lasting use.
- • **Perfect Toddler Transition:** Graduating from sippy cups? This set makes hydration seamless and stylish.
- • **Dishwasher-Safe Convenience:** Easy cleanup for busy parents—just toss in the dishwasher, no microwaving needed.
- • **Travel-Ready Leak-Proof Design:** Silicone valve straw prevents spills, fits car cup holders—hydration on the move.
- • **Eco-Friendly Everyday Hydration:** Reusable tumblers reduce waste and add a splash of fun to your child’s routine.

## Overview

The Zak Designs Kelso 15 oz Tumbler Set features two durable, BPA-free plastic tumblers with soft silicone straws equipped with leak-proof valves. Sized perfectly for toddlers transitioning from sippy cups, these dishwasher-safe tumblers fit car cup holders and prevent spills, making them ideal for both home and travel use.

## Description

This leak-proof tumbler set from Zak Designs makes hydration fun for kids! Durable MaterialsThe tumbler is made from lightweight plastic, and the comfortable straw is made from silicone. Everything is completely BPA free and dishwasher safe.Leak-Proof StrawThe 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 AnywhereThe 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.BPA-Free - Zak is committed to safety.Dishwasher safe, do not microwave.Length: 3.16-inch, Width: 3.16-inch, Height: 6.67-inch.Design: Underwater.

Review: Great
Review: Our Favorite Toddler Cups — Sturdy, Easy to Use, and Great Quality

## 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 | B08XVT7JMR |
| Age Range Description | Baby |
| Brand | Zak Designs |
| Capacity | 15 Fluid Ounces |
| Colour | Underwater |
| Country of Origin | USA |
| Customer Reviews | 4.5 out of 5 stars 1,427 Reviews |
| Enclosure Material | Plastic, Silicone |
| Global Trade Identification Number | 00707849124040 |
| Included Components | Lid, Straw |
| Item Dimensions W x H | 8W x 16.9H Centimeters |
| Item Height | 6.67 Inches |
| Item Weight | 159 g |
| League Name | ncaa |
| Manufacturer | gearbubble |
| Material | Plastic, Silicone |
| Material Features | Insulated |
| Material Type Free | BPA Free |
| Number of Items | 2 |
| Occasion | Graduation |
| Other Special Features of the Product | Dishwasher Safe |
| OutputCapacity | 15 Fluid Ounces |
| Pattern | Cartoon |
| Product Care Instructions | Hand Wash Only, Machine Wash |
| Product Style | Modern |
| Recommended Uses For Product | Travel |
| Reusability | Reusable |
| Shape | Tumbler |
| Special Feature | Dishwasher Safe |
| Style | Modern |
| Theme | Baby |
| UPC | 707849124040 |
| Unit Count | 2.0 Count |

## Product Details

- **Brand:** Zak Designs
- **Capacity:** 15 Fluid Ounces
- **Colour:** Underwater
- **Included Components:** Lid, Straw
- **Material:** Plastic, Silicone
- **Recommended Uses For Product:** Travel
- **Shape:** Tumbler
- **Special Feature:** Dishwasher Safe
- **Style:** Modern
- **Theme:** Baby

## Images

![Zak Designs Kelso 15 oz Tumbler Set, ( Underwater ) 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/71XRr0aR15L.jpg)
![Zak Designs Kelso 15 oz Tumbler Set, ( Underwater ) 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/71XYywwLQQL.jpg)
![Zak Designs Kelso 15 oz Tumbler Set, ( Underwater ) 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/71ZBvRo+naL.jpg)
![Zak Designs Kelso 15 oz Tumbler Set, ( Underwater ) 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/71pGHIPZcTL.jpg)
![Zak Designs Kelso 15 oz Tumbler Set, ( Underwater ) 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/81ISQ8PN0zL.jpg)

## 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

### ⭐⭐⭐⭐⭐ Great
*by A***T on 8 December 2025*



### ⭐⭐⭐⭐⭐ Our Favorite Toddler Cups — Sturdy, Easy to Use, and Great Quality
*by K***. on 7 December 2025*



### ⭐⭐⭐⭐ Cute and colorful. Not impact resistant.
*by L***. on 12 December 2025*



## Frequently Bought Together

- Zak Designs Kelso 15 oz Tumbler Set, (Underwater) Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Bundle for Kids (2pc Set)
- NUK Learner Cup, 6+ Months, Timeless Collection, Amazon Exclusive, 5 Oz, Pack of 2 – BPA Free, Spill Proof Sippy Cup
- AVENT Philips Spout Sippy Cup with Soft Spout and Leak-Proof Design, Blue/Green, 10oz, 2pk, SCF801/21

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.br/products/441512726-zak-designs-kelso-15-oz-tumbler-set-underwater-non-bpa](https://www.desertcart.com.br/products/441512726-zak-designs-kelso-15-oz-tumbler-set-underwater-non-bpa)

---

*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-23*