Campout Kelso Kids Leak Proof Tumbler with Lid and Straw
Campout Kelso Kids Leak Proof Tumbler with Lid and Straw
Campout Kelso Kids Leak Proof Tumbler with Lid and Straw
Campout Kelso Kids Leak Proof Tumbler with Lid and Straw

Kelso Tumbler, 15 oz. (2 Pack)


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Spend $39+ OR add a 32 oz. Harmony Bottle to any order.

Let's keep it simple: this tumbler doesn't leak. The silicone sipper spout has a built-in valve that stops water from flowing when no one is drinking, so it's easy for children to quench their thirst but won't make a mess if the tumbler is tipped over. It's the perfect choice for active kids, or young ones just graduating from sippy cups who aren't ready for an open-topped tumbler yet. The antimicrobial drinking spout helps prevent the spread of bacteria, so you don't have to worry when you take this travel cup on the go, and the 15-ounce plastic tumbler is lightweight and sturdy enough for everyday adventures. The materials are completely BPA free and shouldn't be microwaved—this cup is made for cold drinks. And at the end of the day, you can just disassemble the lid and spout and put everything in the top rack of the dishwasher for a quick and easy clean.

  • Attached straw has valve to prevent leaks
  • Prevents spills while keeping beverages accessible
  • 15 oz capacity
  • Made of durable plastic and silicone
  • BPA free
  • Dishwasher safe, do not microwave
  • Hand wash for best results in keeping the artwork bold and bright

Orders in the contiguous U.S.

  • Free no hassle 30 day returns
  • Free economy shipping on $39+ orders
  • Shipping rates are calculated at checkout for orders below $39

Orders outside the contiguous U.S.

  • Refunds may be available for damaged or defective product
  • Shipping rates are calculated at checkout

We work hard to provide you with quality products. That’s why we’re offering a Limited Lifetime Warranty that covers material or workmanship issues on specified products. For full terms or to submit a claim, visit

zak! is featured in

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Leak Proof Lid
Cup Holder Friendly
Comfortable Straw
Antimicrobial Spout

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.