Zak Designs Kelso Leak-Proof Tumbler, Stainless Steel, 12oz, Harvest
Zak Designs Kelso Leak-Proof Tumbler, Stainless Steel, 12oz, Harvest
Hero image 0 of Zak Designs Kelso Leak-Proof Tumbler, Stainless Steel, 12oz, Harvest, 0 of 9
Visit the Zak Designs Store

Zak Designs Kelso Leak-Proof Tumbler, Stainless Steel, 12oz, Harvest

191 ratings
Zak Designs Kelso Leak-Proof Tumbler, Stainless Steel, 12oz, HarvestZak Designs Kelso Leak Proof Tumbler Stainless Steel 12oz HarvestZak Designs 12oz Kelso Toddler Cups Travel Home Vacuum Insulated Stainless Steel Sippy Cups Leak Proof Design Perfect Kids SafariZak Designs PAW Patrol Dino Movie Kelso Toddler Cups Travel Home 12oz Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids BPA FZak Designs Disney Pixar Kelso Tumbler Stainless Steel 12oz Toy StoryZak Designs 12oz Kelso Toddler Cups Travel Home Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids ZaksaurusZak Designs 12oz Disney Kelso Toddler Cups Travel Home Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids Mickey MouseZak Designs SuperKitties Kelso Toddler Cups Travel Home 12oz Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids Ginny Sparks BZak Designs 12oz Bluey Kelso Toddler Cups Travel Home Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids Bluey Bingo Grandad MZak Designs 12oz Kelso Toddler Cups Travel Home Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids SpaceshipsZak Designs 12oz Kelso Toddler Cups Travel Home Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids Happy FruitZak Designs Disney Winnie Pooh Kelso Toddler Cups Travel Home 12oz Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids Winnie PZak Designs 12oz Kelso Toddler Cups Travel Home 12oz Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids Fanciful UnicornZak Designs Disney Pixar Kelso Tumbler Stainless Steel 12oz CarsZak Designs Sesame Street Kelso Toddler Cups Travel Home 12oz Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids ElmoZak Designs 12oz Disney Princess Kelso Toddler Cups Travel Home Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Kids Ariel Belle CindereZak Designs 12oz Marvel Spider Man Kelso Toddler Cups Travel Home Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design Perfect Kids Spidey AmZak Designs Nintendo Super Mario Galaxy Movie Kelso Toddler Cups Travel Home 12oz Vacuum Insulated Stainless Steel Sippy Cup Leak Proof Design BPA Fr
Actual ColorHarvest-Out of stock

Key item features

  • Leak-proof design: Silicone straw spout has built-in valve that allows liquid to flow when drinking and prevents accidental spills when tumbler is tipped over
  • Keeps drinks cold: Vacuum insulation reduces heat transfer to keep beverages chilled up to 10 hours
  • Perfect for small hands: Recommended for kids age 3 and up; 12-ounce capacity, 3.2 inches in diameter, 6.77 inches tall
  • Travel ready: Fits in car cup holders while keeping drinks easily accessible, with no spills in the car or at home

About this item

Product details

Specifications

Warranty

Warnings

Customer ratings & reviews

4.8 out of 5 stars
stars
191 ratings45 reviews
How item rating is calculated
  1. 5 stars89% (170)
  2. 4 stars5% (10)
  3. 3 stars2% (3)
  4. 2 stars2% (3)
  5. 1 star3% (5)

Reviews summary

Pros

  • : The stopper and valve provide spill-resistant flow.
  • : Features a valve that prevents leaks most of the time.

Neutral

  • : The material insulates well but rusts if the rim chips.
Generated by AI
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 45 reviews

Jun 3, 2026
Reviewer name: Ashley
Top Reviewer
Item details
Color: Mickey
Sold byZak Designs, Inc.Delivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Finally, a toddler cup that actually doesn't leak!

We have gone through so many toddler cups, but the Zak Kelso cup is a game-changer. It genuinely keeps drinks cold for hours thanks to the stainless steel insulation, and it has survived multiple drops without spilling a drop. The Mickey Mouse design is an absolute favorite for my toddler, too. Easy to clean and perfect for car rides!

Helpful?651DBD7X695221036307051
reply from Zak Designs Customer Support

Our goal is to give our customers products that help create everyday smiles. Thank you for letting us know we are accomplishing that goal!

Oct 10, 2026
Reviewer name: Claudia
Top Reviewer
Item details
Color: Bluey
Sold byZak Designs, Inc.Delivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Recommended

This has been a very good cup for my grandson. He loves Bluey so this was a good buy. I haven't had any spills. Easy to clean and dishwasher safe.

Helpful?651DBD7X695221036307051
Sep 29, 2026
Reviewer name: Brittany
Item details
Color: Dinosaur
Sold byZak Designs, Inc.Delivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great cups for littles!

Helpful?651DBD7X695221036307051
reply from Zak Designs Customer Support

Our goal is to help create everyday smiles for our customers, but sometimes we know that we fall short of that goal. Please reach out to our amazing Customer Care Team at customerservice@zak.com, and give us a chance to bring that smile back for you.

Current price is $12.99
Price when purchased online
Selected option out of stock
More options available

How do you want your item?

How do you want your item?
Out of stock