Hydro Flask Kids 12 oz Tumbler with Straw – Mermaid Green
Hydrate your little one with the Hydro Flask Kids Tumbler. This 12 oz, double-wall vacuum-insulated cup keeps drinks cold for hours. The leak-resistant press-in lid with soft flexible straw is perfect for children ages 3+. At just $11.80 (compare at $23.59), it’s an affordable, durable choice for school or play. Order now and save 50%.
Features
Capacity: 12 oz – ideal for small hands.
TempShield™ insulation: cold drinks stay cold for hours.
Leak-resistant press-in lid with soft, flexible straw.
Colorful boot provides extra protection and prevents slips.
Dishwasher safe – easy cleanup.
Fits most car cup holders.
Specifications
Brand: Hydro Flask
Model: Kids Tumbler
Type: Insulated kids cup with straw
Color: Mermaid Green
Material: 18/8 stainless steel, BPA-free lid
Capacity: 12 oz
Age Range: 3+
Compatibility & Use
Perfect for school lunches, park outings, or car rides. The cup fits in most cupholders, making it a travel-friendly companion. The straw lid allows easy sipping for young children.
Is it Leakproof?
The lid is leak-resistant, not fully leakproof. It is designed to prevent spills when upright, but if turned upside down, some liquid may escape. For full leakproof, consider the press-in lid with straw – still not for vigorous shaking.
Price Value
Our price: $11.80 – that’s 50% off the $23.59 list price. Apply coupon VESSEL10 for an additional 10% off. Free shipping on orders over $45 – combine with other items.
Leak-resistant press-in lid with soft straw for comfortable sipping – age 3+.
Colorful boot for extra protection and stability – 50% off at $11.80.
Color: Mermaid Green
Model: Kids Tumbler
Capacity: 12 oz
Material: 18/8 stainless steel, BPA-free lid
Age Range: 3+
Insulation: Double-wall vacuum (TempShield)
Product Type: Insulated tumbler with straw lid
Dishwasher Safe: Yes
Seller: The Vessel Merchant
MPN: Kids Tumbler
Product Details
Kid-Friendly Hydration
This vibrantly colored tumbler makes it fun for kids to stay hydrated. The sturdy boot protects the cup from drops and adds a pop of color.
Compare to Other Kids Cups
Unlike plastic cups, this stainless steel tumbler is free from BPA and doesn’t retain odors. It’s more durable and retains cold better than most.
Save Big
Retail price is $23.59, our sale price is $11.80 – a 50% saving. Add VESSEL10 for 10% more off. Get free shipping by adding a few more items to your cart.
Frequently Asked Questions
Is the Hydro Flask Kids Tumbler leakproof?
The lid is leak-resistant, not fully leakproof. It prevents spills when upright, but may leak if inverted or shaken vigorously. For a fully leakproof option, check other Hydro Flask lids.
What age is the Hydro Flask Kids Tumbler suitable for?
It is designed for ages 3 and up. The straw is soft and flexible, and the cup is easy for small hands to hold.
Is the Kids Tumbler dishwasher safe?
Yes, both the cup and the lid (when disassembled) are dishwasher safe. Place on the top rack for best results.
How long does it keep drinks cold?
Thanks to TempShield insulation, drinks stay cold for many hours – typically 6-8 hours, depending on ambient temperature.
Where can I buy a replacement lid or straw?
Replacement parts are available on this site. Use coupon VESSEL10 for 10% off your entire order.
4.3★★★★★★★★★★(12)
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Customer Photos
12
Customer Reviews
12
★★★★★★★★★★5.0
n*****t
Verified
Perfect size for little ones
My daughter loves this tumbler! The mermaid green is her favorite color. It's the perfect size for her small hands, and the straw lid is easy to use. It keeps her juice cold during school. Very happy with this purchase.
★★★★★★★★★★4.0
h***u
Verified
Good tumbler, but straw could be better
The tumbler is well-insulated and the color is nice. However, the straw is a bit thin and my son tends to bite it. It still works, but I worry about durability. Overall, it's a good product.
★★★★★★★★★★5.0
j***s
Verified
Great for travel
We take this tumbler on road trips and it's great. The lid is leak-resistant (some minor leaks if inverted, but fine for daily use). It keeps drinks cold for hours. My daughter is happy.
★★★★★★★★★★3.0
t*****t
Verified
Cute but not durable
The tumbler is very cute, but the paint started chipping after a few weeks of use. Also, the lid isn't fully leakproof – we've had spills. It works okay, but I expected better from Hydro Flask.
★★★★★★★★★★5.0
x*d
Verified
My kids love them!
I bought two for my twins and they are obsessed. The straw lid makes it easy for them to drink without spilling. The insulation is great – their water stays cold all day. The mermaid green is vibrant. Excellent buy!
★★★★★★★★★★4.0
r**a
Verified
Nice size and color
This tumbler is just the right size for my 4-year-old. It's easy to hold and drink from. It keeps milk cold for a few hours. I would give 5 stars but the lid is a bit hard to put on and take off.
★★★★★★★★★★5.0
e**i
Verified
Best kids tumbler
I've tried many kids' tumblers and this one is the best. It's sturdy, insulated, and the straw lid is perfect. The color is beautiful. Highly recommended for parents.
★★★★★★★★★★3.0
q*m
Verified
Leaks when tipped
The tumbler is nice and insulated, but it leaks if it's knocked over. My kids often leave it on its side, and we've had puddles. Maybe it was a defect, but it's not reliable.
★★★★★★★★★★5.0
q***q
Verified
Great quality
This tumbler is well-made and durable. The mermaid green is even nicer in person. It keeps drinks cold and the straw is easy to clean. My daughter uses it every day and it looks new.
★★★★★★★★★★4.0
y*****g
Verified
Good but a bit overpriced
The tumbler works well and my son likes it, but I think $11.80 is a bit much for a kids' tumbler. However, with the discount, it's acceptable. The quality is good.
★★★★★★★★★★5.0
d*d
Verified
Perfect for school
My daughter takes this to school every day. It's the perfect size for her lunchbox and keeps her water cold all day. The straw lid is easy for her to use. I'm very pleased.
★★★★★★★★★★4.0
q*****y
Verified
Almost perfect
I love the color and the insulation. The straw is a bit short, so my daughter has to tip the tumbler to get the last sip, but that's a minor issue. Otherwise, it's a great product.