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Your Splitflask
Default Title · Cup + Comfort-Grip Handle
Built around the way you carry your day.
- Color
- Default Title
- Quantity
- 1 cup
- Setup
- Cup + Comfort-Grip Handle
Personalized 30oz Splitflask Tumbler
2 x 15 fl oz
$58.00 USD
Regular price
$58.00 USD
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Product details
Personalize a 30oz Splitflask dual-chamber tumbler with a laser-etched name, monogram or initials. Precision engraving creates a durable stainless steel finish that makes the tumbler uniquely yours.
- 30oz dual-chamber tumbler
- Custom laser engraving
- A practical gift for work, travel or home
Personalized 30oz Splitflask Tumbler
$58.00 USD
Regular price
$58.00 USD
REAL CUSTOMERS TALK
“As someone who needs caffiene *and* hydration on the go, this tumbler is a game-changer. The dual chambers keep my coffee hot and water cold for hours. Genius idea!”
– Hayley Zovickian, Buzzfeed
HOW IT WORKS
Simply pour your drinks into each chamber one at a time.
Place the lid with the straw side over your cold drink and the spout side over your hot drink.
Lift the straw to sip your cold drink or the spout to swig your hot drink.
COMPLETE THE SET
The honest FAQ
Questions worth asking before you buy
The best FAQs are the questions people are afraid to ask. Here are the honest answers.
Before you buy
Is Splitflask for everyone?
Honestly? No.
If you're looking for a cup that keeps a drink untouched for 8+ hours, there are better options.
If you're tired of carrying two drinks everywhere, that's exactly why Splitflask exists.
The big question
Why would I want two drinks in one cup?
Because most people already carry two drinks.
- Coffee + water.
- Electrolytes + hydration.
- Pre-workout + water.
- Tea + water.
Splitflask lets you carry both in one place instead of juggling two separate containers.
Do the drinks mix together?
No.
Each drink sits in its own chamber.
The only requirement is that the lid is aligned with the center divider when you close it.
Once aligned correctly, both drinks stay separated.
Does it leak?
When the lid is aligned correctly and fully closed, it is designed to keep both chambers sealed.
Most leak complaints come from incorrect lid alignment.
Temperature questions
Can I put a hot drink on one side and a cold drink on the other?
Yes.
That's one of the most common ways people use Splitflask.
Coffee + water is one of our customers' favorite combinations.
Will the hot side affect the cold side?
Over time, some temperature influence is normal.
You're carrying a hot drink and a cold drink in the same container.
The tradeoff is convenience: one cup instead of two.
For most daily routines, commutes, workouts, and workdays, both drinks remain enjoyable and usable.
Is this a replacement for a high-end thermos?
No.
This is a two-drink solution.
It's built for people who want to carry two drinks in one cup—not people trying to keep coffee untouched all day.
Size & weight
Is it heavy?
It's heavier than a standard tumbler because it's carrying two drinks instead of one.
Think of it this way:
You're replacing two containers with one.
Will it fit in my car's cup holder?
Yes.
Splitflask is designed to fit most standard vehicle cup holders.
How much does each side hold?
Each chamber holds approximately 15 oz.
Together, that's 30 oz total.
Cleaning
Is it dishwasher safe?
Yes.
Top rack is recommended.
Is it difficult to clean?
Not at all.
Most people use:
- Dishwasher
- Bottle brush
- Straw brush
Like any insulated tumbler, occasional deep cleaning is recommended.
Using it
Is there a learning curve?
A tiny one.
The biggest thing to remember is aligning the lid correctly with the divider.
Most people figure it out after their first use.
Can I use two cold drinks?
Absolutely.
Many customers use:
- Water + electrolytes
- Sparkling water + still water
- Two different flavored drinks
Can I use two hot drinks?
Yes.
You can use both sides however you'd like.
Can I use one side and leave the other empty?
Of course.
You're not required to use both chambers.
Returns & support
What if I don't love it?
If you buy through Amazon, Amazon's return policy applies.
If you buy through Splitflask.com, see our return policy page for current return options.
What if something arrives damaged?
Contact us and we'll make it right.
How quickly do you respond to support requests?
We typically respond within 24–48 business hours.
Real humans read every message.
The question nobody else asks
What's the catch?
Every product has tradeoffs.
Splitflask's tradeoff is simple:
It's larger than a regular tumbler and takes one use to learn.
In return, you stop carrying two drinks everywhere.
Most people decide that's a trade worth making.
