Innovation in Hydration

Stop carrying two drinks like it's your job.

Coffee + water. Pre-workout + hydration. Hot + cold. Splitflask carries both. You carry less.

Not a thermos replacement. A two-drink solution.

Get Your Splitflask

Keeps drinks separate

"I flipped it upside down... absolutely no leaks. My life is changed."

— Sarah M., Verified Buyer

Your juggling days are over Splitflask

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As Seen In

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Popular Science

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Huffington Post

Good Housekeeping

Let's not waste your time.

If you want a cup that keeps ice frozen through a house fire… yeah, this isn't that cup.

If you're chasing elite thermos performance… also not us.

But if you're tired of carrying two drinks everywhere like it's normal… you're in the right place.

You're doing too much.

Two drinks. One in each hand. Trying to open a door. Grab your phone. Get to your car. Something always spills. Splitflask fixes that.

The Juggling Act

Old Way: The Double-Fist

• Two separate cups to clean
• Zero hands free for anything else
• Won't both fit in one cup holder

The Splitflask Way

New Way: Total Control

• One hand, two drinks
• Fits perfectly in standard cup holders
• Dishwasher safe & eco-friendly

Built for real-life use

Keeps drinks separate

Hot + cold at the same time

Designed for your daily routine

No juggling two cups

"Flipped it upside down… zero leaks. My daily gym bag essential."

— Mike R.

Dual-Chamber Design

Our patented vacuum-sealed divider prevents flavor and temperature transfer for your commute. Hot stays hot enough, cold stays refreshing. No flavor crossover. Maximum convenience.

One cup. However you use it.

Hot Coffee + Cold Water

Pre + Post Workout

Electrolytes + Protein Shake

Hot Tea + Cold Water

2 Cold Drinks on Long Days

Engineered for Your Routine

Carry Less

Ditch the two-cup shuffle and regain use of your second hand for things that matter.

Hot + Cold Together

Separate chambers mean your ice won't melt your coffee and your coffee won't warm your water.

Separate Chambers

Two distinct paths mean no flavor contamination. Drink what you want, when you want it.

Leakproof Lid

Precision engineering ensures that when aligned correctly, your Splitflask is 100% leakproof.

Cupholder Friendly

Designed to fit in most standard vehicle cup holders without the bulk of two cups.

Dishwasher Safe

Top-rack safe components make cleanup as effortless as the carry.

A few things to know

Lid Alignment: To stay 100% leakproof, the lid gaskets must be correctly aligned. It takes 2 seconds to check, but it's the key to a dry bag. We value function over magic.

Size & Fit: It's designed to fit 95% of standard cup holders. It's slightly taller than a standard 20oz cup because, well, it's holding twice the variety.

Cleaning: It's fully top-rack dishwasher safe. No hidden nooks or impossible-to-reach corners. Just simple, clean hydration.

Temperature: Extremely hot liquids will slightly influence the cold side over 6+ hours due to basic thermodynamics. For your commute or workout, it stays perfect. We'd rather be honest than make impossible claims.

The Battle of the Tumblers

Feature	Regular Tumbler	Splitflask
Capacity	1 Drink	2 Drinks
Flexibility	Choose Hot OR Cold	Hot AND Cold
Hands Required	Two Hands (for 2 drinks)	One Hand
Cup Holder Usage	Requires 2 slots	Requires 1 slot

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Frequently Asked Questions

Is it hard to clean?

A few customers mentioned deep cleaning is easier with a brush or by using the dishwasher.

Is it really leakproof?

Yes! As long as the lid is aligned correctly and the gaskets are properly seated, you can flip it upside down or toss it in your bag without worry.

Is it dishwasher safe?

Yes, and several reviews mention that as a major plus.

Will it fit in my cup holder?

Many customers mention that it fits in their car cup holder.

Will my coffee taste like my water?

No. The chambers are completely isolated, and the lid features dual drinking ports that keep the liquids entirely separate.

Can I use hot and cold at the same time?

Yes. That’s exactly what it was made for, and many customers specifically use it for coffee and water.

Stop carrying two cups.

One cup. Two drinks. Done.

Get Your Splitflask

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