IRON °FLASK Classic Tumbler - Vacuum Insulated Stainless Steel Water Bottle, Double Walled, Drinking Cup, Insulated Travel Mug (Stardust Unicorns, 12 oz Kids)
Condition: New
Notify me when this product is back in stock
Buy Now, Pay Later
As low as
$6
/ mo
Learn more
- – 4-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. 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
30-day returns
Learn more
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:
Unavailable
Style: 12 oz Kids
Color: Stardust Unicorns
Features
- CUP HOLDER-FRIENDLY: Kids tumblers in sizes 12 oz fit in most cup holders.
- FUNCTIONAL DESIGN & RUBBER BOTTOM: The powder coat exterior finish is a classic. It assures that you stand out with a very durable and elegant bottle. Our rubber bottom provides a non-slip base for protection and noise proof.
- Kids Tumblers: Goodbye sweat! The double wall insulation makes the Iron Flask Tumbler sweat-free! It keeps your drink COLD for up to 20 hours, and HOT for up to 5 hours (depending on size). Our tumblers fit in most standard cup holders.
- 18/8 PREMIUM STAINLESS STEEL: The Iron Flask is made of 18/8 Stainless steel that is BPA free and non-toxic. It will never leave a metal taste or rust.
- DURABLE AND UNIQUE DESIGNS: Great kids tumbler for school or any active lifestyle, select from our many stainless steel designs. Customize it with the included 20 name stickers.
Brand: IRON °FLASK
Material: Stainless Steel
Color: Stardust Unicorns
Capacity: 12 ounces
Special Feature: BPA Free, Double Wall, Non-Slip, Spill Proof, Vacuum Insulated
Brand: IRON °FLASK
Color: Stardust Unicorns
Special Feature: BPA Free, Double Wall, Non-Slip, Spill Proof, Vacuum Insulated
Style: 12 oz Kids
Theme: Unicorns
Recommended Uses For Product: Travel
Included Components: 2 Plastic Straws, 20 Name Stickers
Shape: Round
Pattern: Solid
Product Care Instructions: Hand Wash Only
Age Range (Description): Kid
Material Feature: Insulated
Reusability: Reusable
Unit Count: 1.0 Count
Item Weight: 11.2 ounces
Product Dimensions: 3.5"W x 5.4"H
Material Type Free: BPA Free
Number of Items: 1
League: ncaa
Finish Type: Powder Coat
Manufacturer: IRON °FLASK
UPC: 810082481488
Size: 12 Ounces
Item model number: KidsTumbler
Date First Available: November 14, 2022
Frequently asked questions
This product is currently out of stock. Please check back later for shipping info.
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.
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
- Zip Pay in 4
- Financing through Apple Pay
- Financing through Google Pay
Learn more about financing & leasing here.
![NETANY [ 8pcs Set ] Drinking Glasses with Bamboo Lids and Glass Straw - 16oz Glass Cups, Beer Glasses, Iced Coffee Glasses, Cute Tea Cup, Ideal for Cocktail, Whiskey, Gift - 2 Cleaning Brushes](https://m.media-amazon.com/images/I/7164z-RUifL._AC_US500_.jpg)
Top Amazon Reviews
Style: 24 oz Solid Lid
Color: Cobalt
Love it. Great size. Keeps beverage cold or hot. Like the way it looks. Durable. Would buy it again.
Reviewed in the United States on January 10, 2026 by Peter Mclaughlin
Style: 32 oz Solid Lid
Color: Aurora
I absolutely adore this Tumblr. I love the color and how it changes throughout the cup. I love that my drinks actually stay cold, if I fill it up with ice water around midnight when I wake up around 9:00 a.m. the ice is still there. It keeps drinks cold longer. The one lid that you do have is actually spill proof. It's super easy to clean, it's super easy to use and it just kind of fits in your hand. I can easily take this to work with me if it's right in my bag and in my cup holder
...
show more
Reviewed in the United States on November 20, 2025 by rod
Style: 24 oz Solid Lid
Color: Aurora
These Iron Flask tumblers are all great quality and really beautiful. They keep water hot for hours (5 hours and counting). Love them! Well made. Nice rubber bottom to not damage the wood table. Wish the price were a bit less but I do love them in general.
Reviewed in the United States on January 1, 2026 by CM
I received my 32 oz. "Dark Rainbow" (pretty!) IRON °FLASK tumbler yesterday and feel compelled to write this review to encourage you to get your own NOW! I live in the sultry south where heat and humidity will turn your ice-filled glass into a watery drink within minutes. Initially, I bought this to use as sort of an "individual" ice bucket so I could refill the ice in my glass of tea without getting up every five minutes of a Prime-binge, especially any compelling thriller. Indeed, for the first night of having this beauty, that is precisely how I used it—and it worked perfectly. At the end of the night, I left ONE lone ice cube in the tumbler to see how it would fare. Twelve hours later, that solitary ice cube is only partially melted and still icy cold! The tumbler itself comes with two straws, and two lids: one for use with a straw and one flip-top for use with hot drinks (or if you just prefer to drink directly from the tumbler). Each top is very thick—I've never had a tumbler where the top is designed to also provide insulation. All-in-all, I am very impressed with the quality and functionality of this tumbler. I only write reviews when I am deeply disappointed with a product to serve as a buyer-beware herald, or am over-the-moon pleased and what to provide fellow shoppers to confidently purchase. Happily, this tumbler is the latter. I haven't tried it in my car's cupholder as yet, but believe it will easily fit there as well. Also, there was ZERO condensation when the cup was filled to the brim with ice and none when I checked that solo melting ice cube this afternoon. I love that I can place the cup on any surface without worrying about damage to the finish. NOTE TO MANUFACTURER: I still would like to find a mini-ice bucket (48-50 oz. would be ideal, and not more than 5" diameter) to use when I just want to drink from a glass, and don't want to haul out my big ice bucket. I am convinced that YOU are the manufacturer to create the perfect mini-bucket for a chair-side refill. I would gladly be your first customer. Thanks!
...
show more
Reviewed in the United States on August 10, 2023 by LAFM
I have several other Iron Flasks and they are great. Keeps my drink cold all day long. This one I got because I liked the retro woodgrain look. However, the paint they used does wear off over time if you put it in some car cup holders, etc. I now have a faux woodgrain iron flask with a silver ring where the paint has worn off. However, the cut itself is still meeting my needs functionally so I'm not mad about that.
...
show more
Reviewed in the United States on January 23, 2026 by CaptainTealbeard
I bought this as a gift for my best friend because I loved mine so much and they are an avid coffee drinker like me. They were so excited when they opened it and saw it, it warmed my heart to know I chose well. I just love IronFlask! Works great for keeping drinks hot or cold all day long. Super easy to clean. Leak resistant if knocked over. Beautiful colors and texture, and affordable!
...
show more
Reviewed in the United States on October 12, 2025 by Patricia K.
These are great, keep drinks cold longer, kids use them for school, very durable.
Reviewed in the United States on January 17, 2026 by Amazon Customer
Style: 24 oz Solid Lid
Color: Sage
This is my second one - and I love them both. It comes with 2 straws, and 2 lids, and has a built in coaster bottom so it doesn't slip around in the cup holder of my car or do any damage to tables. Both of mine are green, one a lighter sage, and the other a darker sage. Beautiful. The straws match. Keeps my cold smoothies cold for several hours. Love. Keeping.
...
show more
Reviewed in the United States on January 1, 2026 by Maggie