The Ultimate Tumbler For The Way You Hydrate

Whether it's water and coffee, tea and lemonade, beer and soda, pre-workout and post-workout, or even a little something extra, Splitflask allows you to enjoy two drinks in one cup.

Most Tumblers Are Only Designed For One Drink

And finding a single tumbler that adapts to all your beverage needs without leaking can feel impossible

Special Features

  1. 20oz in each side.
  2. Flip up straw for the perfect sip.
  3. See-through cover for a clear view of your beverages.
  4. Food grade 18/8 stainless steel core.
  5. Double wall vacuum insulated separation of compartments.
  6. Dual Sip lid allows you to drink from each side separately.
  7. Food-grade silicone straw.
  8. Built-in silicone base for protection and noise-dampening.
  9. BPA/BPS free and no lead like the other guys.
  10. Carry two cold drinks, two hot drinks or a cold and a hot drink at the same time.
  • Temperature Independence Temperature Independence
  • DISHWASHER SAFE DISHWASHER SAFE
  • Flavor Integrity Flavor Integrity
  • Spill Proof Spill Proof
  • Ergonomic Design Ergonomic Design
  • Dual Sip™ Lid Dual Sip™ Lid
  • Temperature Independence Temperature Independence
  • DISHWASHER SAFE DISHWASHER SAFE
  • Flavor Integrity Flavor Integrity
  • Spill Proof Spill Proof
  • Ergonomic Design Ergonomic Design
  • Dual Sip™ Lid Dual Sip™ Lid

Your Hydration Simplified in 3 easy steps

two drinks being poured into an illustration of Splitflask

Simply pour your drinks into each chamber one at a time.

The lid moving downwards on an illustration of Splitflask

Place the lid with the straw side over your cold drink and the spout side over your hot drink.

Arrows showing how you use the lid in an illustration of Splitflask

Lift the straw to sip your cold drink or the spout to swig your hot drink.

Lady pouring hot coffee into a black Splitflask tumbler
Based on 1149 reviews

Customer Reviews Of Our 30oz Version

Alex T.

"After sampling various products, I stumbled upon the perfect choice with this brand; I love the feature of combining coffee and water in one bottle."

Anna R.

“I've used Splitflask for months and also got one for my husband. It's perfect for hikes, keeping you hydrated, energized, and hands-free. It's convenient for carrying water and tea in one bottle.”

David L.

"I absolutely love my Splitflask! It's a game-changer for my busy mornings. I can take both my coffee and water without having to carry two separate bottles. The divider in the middle is genius and keeps my drinks perfectly separated."

Jonathan C.

"The SplitFlask is fantastic! It keeps my iced water and hot coffee perfectly separated and at the right temperatures. The design is brilliant, stylish, and well-made. It's a must-have for staying hydrated and caffeinated on the go. Highly recommend!"

Mary W.

"SplitFlask delivers on its promises! It keeps my smoothie chilled and my tea hot for hours. The sleek design is easy to clean, making it perfect for anyone with multiple beverages on the go. I'm extremely satisfied with my purchase."

From the mind of a NICU Nurse ♥️

The idea for Splitflask came from a simple daily challenge I faced as a NICU nurse: I could only bring one drink container to work. This rule often forced me to choose between my morning coffee and staying hydrated with water throughout my shift. My husband noticed the trail of half-finished Starbucks lattes I’d leave in the car, and he realized the waste wasn’t just about the coffee—it was about having to choose between two essentials because of workplace rules.

Seeing my frustration, we envisioned a solution: a flask that could hold both hot and cold drinks at the same time. With this, I wouldn’t have to sacrifice my coffee for water or the other way around. That’s how Splitflask was born—a simple yet innovative answer to a problem many of us face, designed to make life just a little bit easier.

Splitflask founder Cheryl
Splitflask founder Cheryl
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