Search  for anything...
Zak Designs

Zak Designs Kelso 15 oz Tumbler Set, (Starpower) Leak-Proof Screw-On Lid with Straw Made of Durable Plastic and Silicone, Perfect Cup Bundle for Kids (2pc Set)

  • Based on 23,390 reviews
Condition: New
Checking for the best price...
$13.99 Why this price?

Buy Now, Pay Later

As low as $3 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, May 19
Order within 53 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Color: ‎Starpower


Size: 15 Ounces


Style: Drinkware


Features

  • SIZE: The set contains two tumblers that are 3.16 inches in diameter and 6.67 inches tall. They each 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 cute 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.

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. Specifications: 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: Starpower.

Brand Name: Zak Designs


Recommended Uses For Product: Home, Travel


Included Components: Tumbler x 2


Specific Uses For Product: Home, Travel


Age Range Description: Kids 3+


Customer Package Type: Standard Packaging


Manufacturer: Zak Designs


UPC: 707849142976


Global Trade Identification Number: 76


Model Number: 7070-U265


Manufacturer Part Number: 7070-U265


Item Type Name: Sippy Cups With Leak-Proof Design is Perfect For Kids


Color: ‎Starpower


Product Style: Drinkware


Theme: Cartoon, Christmas, Easter, Stars, Travel


Shape: Round


Pattern: Star


Subject Character: ‎Starpower


Occasion: Birthday


Material Type: Plastic


Product Care Instructions: Dishwasher Safe, Hand Wash Only


Material Features: Lightweight


Reusability: Reusable


Material Type Free: Lead Free


Is the item dishwasher safe?: Yes


Finish Types: Glossy


Capacity: 15 Fluid Ounces


Unit Count: 1.0 Count


Item Weight: 5.6 ounces


Item Dimensions W x H: 3.74"W x 6.89"H


Number of Items: 1


Size: 15 Ounces


Other Special Features of the Product: Leak Proof, Soft Straw


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, May 19

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • the only toddler cup I recommend
Color: DinoRoar & Zaksaurus Size: 15 Ounces Style: Drinkware
absolutely love these cups for my toddler. spill proof, cute & easy to clean. they’re durable & good quality, they’ve quickly become to only cups we like to give our 2 year old.
Reviewed in the United States on April 1, 2026 by Az Miller
    • Impossible toddler tested- APPROVED!!!
Color: DinoRoar & Zaksaurus Size: 15 Ounces Style: Drinkware
I’m not kidding- these are the only cups my toddler will use and I have gone through dozens of others. He can’t push the straw inside like he does on others. He can’t leak true contents all over himself like all of the other others. He can even drink holding the cup upright like a bottle where the others cannot. I have bought many of these. They are easy to clean. Lid functionality is incredible. Literally never leaks. Fits perfectly in sides of backpack and in cup holders. Comes in cute designs. Best purchase! ... show more
Reviewed in the United States on April 5, 2026 by Marybeth
    • THERE CUTE
Color: Bluey Size: 15 Ounces Style: Drinkware
I absolutely adore these cups, they hold a significant amount of liquid. Also when flipping them over they do not leak, but once using them for about a month or two I noticed there was small leakage coming from the straw. If there is cold liquid in there and it starts to warm up the pressure from the inside will make the liquid come up from the straw causing it to leak. Overall, these cups are cute and durable but there is some slight leakage. It is dishwasher safe and the straw in the inside typically do stay intact even after my toddler throws it. ... show more
Reviewed in the United States on April 4, 2026 by Jae
    • Great kids cups!!
Color: Ginny, Sparks, Buddy, Bitsy (Disney's Su... Size: 15 Ounces Style: Drinkware
I absolutely love these Zak Designs Disney SuperKitties Kelso toddler tumblers! The colors are bright and fun, and the SuperKitties designs are adorable — my little one was instantly obsessed. The size is perfect (15 oz), and I love that they come in a 2-pack so we always have a clean one ready to go. The best part? They really are leak-proof. I’ve tossed them in a diaper bag and they haven’t spilled once. The straw is soft and easy for toddlers to drink from, and the cups feel sturdy and durable — not flimsy at all. They’re great for home, car rides, and on-the-go. Easy to clean and hold up well after multiple washes. Definitely worth it and I would 100% buy them again! ... show more
Reviewed in the United States on February 22, 2026 by Miss Rachel
    • Great Cups - Minor Flaws
Color: Unicorn Size: 15 Ounces Style: Drinkware
We love the Zak Designs Kelso Tumbler Set! These cups don’t leak at all, and with our 3-year-old, we’ve never had any issues. They’re easy for little ones to use and have been fabulous overall. That said, our second child has shown a small design flaw: the rubber straw can be pulled out, which sometimes leads to spills in her car seat. Also, after about a year of dishwasher use, the designs start fading and peeling. Overall, these are still great cups and we’d recommend them—just wish the straw design and durability of the print were improved. ... show more
Reviewed in the United States on February 24, 2026 by CTucker
    • 🕷️ Perfect for Little Superheroes – Durable, Fun, and Truly Leak-Proof!
Color: Spidey and His Amazing Friends Size: 15 Ounces Style: Drinkware
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! ... show more
Reviewed in the United States on August 6, 2025 by Jay B
    • I love it
Color: Sweet Berry, Lemon Zest Size: 15 Ounces Style: Drinkware
I love these cups! They’re perfect for kids and super easy for little hands to use. The design is really cute and they hold up well. I also like that they don’t leak easily, which is a big plus. Great for everyday use!
Reviewed in the United States on March 28, 2026 by Milagros Garzón
    • ⭐️⭐️⭐️⭐️⭐️
Color: Frozen 2 Size: 15 Ounces Style: Drinkware
These Zak Designs 2-pack Frozen Disney cups were a huge hit with my daughter! The cups are the perfect size for little hands, and the Frozen designs are bright, colorful, and fun. They’re durable, dishwasher-safe, and easy to clean, which makes them perfect for everyday use or for themed parties. My daughter loves drinking from them, and they’ve held up really well over time. A simple, practical way to add Disney magic to snack time — highly recommend! ❄️👑💙 ... show more
Reviewed in the United States on March 22, 2026 by Kelsea

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...