Mystery Color Splitflask — Free Gift

$56.00 USD
Regular price $56.00 USD
30oz dual-chamber tumbler with two sealed 15 oz drink sections
Independent insulation keeps coffee hot and water cold
Leakproof, BPA/BPS-free, and top-rack dishwasher safe
Try it risk-free for 30 days Not the right fit? Read our return policy.
Product details

A surprise-color 30 oz Splitflask reserved for Buy X, Get Y bundle gifts. The color is selected during fulfillment.

Shipping

Orders are processed within 1–3 business days and include tracking. Free US shipping is available on orders over $60.

30-day returns

Try Splitflask for 30 days. If it is not right for you, contact us to start a return. See our refund policy for full terms.

“As someone who needs caffeine 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
Diagram showing the process of making coffee using a filter and water.

1. Fill both chambers

Pour one drink into each 15 oz chamber.

splitflask steps how to use

2. Align the lid

Place the straw over your cold drink and the spout over your hot drink.

splitflask steps how to use

3. Sip either side

Flip the straw or open the spout to enjoy each drink independently.

See Splitflask in action

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.

You may also like