mommore MM3402 Kids Insulated Tumbler, 12 oz

The mommore MM3402 kids tumbler holds 12 ounces and combines a stainless-steel, double-wall vacuum-insulated body with a removable straw. Its compact capacity and dishwasher-safe components suit everyday drinks, while the listing's insulation-time estimates are claims rather than verified performance.

At a glance

Removable straw and a spill-resistant design are intended to make sipping easier and help reduce mess.
The listing says the straw, lid, and cup come apart for cleaning and that all parts are dishwasher safe.
A wide-mouth opening is described as easier to reach for cleaning.
The product description gives approximate temperature-retention estimates, which may help set expectations but are not independently verified.

Price

$11.19Save 20%

Reference price: ~~$13.99~~

Price checked: Nov 13, 2026

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Pros and cons

Pros

The removable straw and disassembly-friendly design support more thorough cleaning than a fixed-straw arrangement.
A 12-ounce capacity and listed dimensions make it a compact option for a child's everyday drinks.
Stainless steel, double-wall vacuum insulation, and dishwasher-safe care are listed.

Technical specifications

15 specifications

Identity
Brand	mommore
Model	MM3402

Capacity and use
Capacity	12 ounces
Recommended uses	Home, Travel
Age range	Kid

Dimensions and installation
Form factor	Round
Dimensions (W × H)	3.66"W x 7.28"H
Weight listed	9.28 ounces

Materials and protection
Material listed	Stainless Steel
Material features	Insulated, BPA-free, Dishwasher safe, Portable
BPA status	BPA Free

Design and care
Color and pattern	Zoo
Special features	Dishwasher Safe, Double Wall, Removable Straw, Spill Proof, Vacuum Insulated
Care instructions	Dishwasher Safe
Reusability	Reusable

What to know before buying

The listing estimates warm-drink retention at approximately 3–5 hours and cold-drink retention at about 5-12 hours. Treat these as manufacturer claims, not guaranteed results. It also describes the bottle as both spill-proof and spill-resistant, so the degree of leak protection is not confirmed.

What’s in the box

Included

Lid

Who is it for?

A good fit for

Caregivers looking for a compact 12-ounce tumbler with a removable straw for home, travel, school, or daycare.
Buyers who want a reusable stainless-steel cup with dishwasher-safe parts.

Less suited to

People who need a stated, independently verified leakproof guarantee or tested temperature-retention performance.
Buyers needing a larger-capacity bottle than 12 ounces.

mommore MM3402 Kids Insulated Tumbler, 12 oz · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 39 ratings

5 stars78%78%
4 stars14%14%
3 stars3%3%
2 stars0%0%
1 star5%5%

Aggregate ratings lean positive, with most ratings in the highest category, but a smaller share are low ratings. With no written customer-feedback summary available, the ratings do not identify specific strengths, complaints, or reasons. They offer limited guidance on whether the straw, cleaning, or insulation suits a particular routine.

Frequently asked questions

How much does this tumbler hold?

The listed capacity is 12 ounces.

Can the parts be cleaned in a dishwasher?

The listing says the straw, lid, and cup are dishwasher safe and can be taken apart for cleaning.

How long does it keep drinks warm or cold?

The listing estimates warm drinks stay warm for approximately 3–5 hours and cold drinks stay cold for about 5-12 hours. These are manufacturer claims, not verified guarantees.

Is the bottle guaranteed not to leak?

The listing uses both “spill-proof” and “spill-resistant” wording, so it does not clearly establish a leakproof guarantee.