The Flask That Knows When You're Thirsty
Keeps your brew sip-ready for hours.
£34.99
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Price and availability can change at any time on Amazon. Last checked: 22 February 2026 at 02:46 UTC.
Why You Need This in Your Life
Stop singing 'tainted love' every time your drink spills. With Ninja’s LockLeak technology, your bag stays stain-free, and your hands stay injury-free thanks to the cool-to-touch exterior. Not to mention, its nifty heatstore tech ensures your 95°C tea doesn’t scald you and stays at a perfect temperature.
The Problem It Actually Solves
You come home from a jog wanting a hot drink, but it’s pipe hot. This flask cools it to sip-ready temps quickly!
Best For…
Real-World Use Cases
Morning Commute Chaos
Keep your coffee spill-free and at the perfect drinking temperature during your rush.
Gym-to-Work Transition
Freshen up at the gym, then enjoy a perfectly warm brew during your walk to work.
Outdoor Adventure Buddy
Perfect for hiking; take a break with your hot drink just the way you like it.
The Honest Take
The Good
- ++ Leak-proof lid prevents dribbles in your backpack.
- ++ Heatstore technology for pain-free sipping.
- ++ Dishwasher safe for convenient cleaning.
The Not-So-Good
- –- Not eligible for Prime, so no rush delivery.
- –- Slightly hefty at 530 grams if packing light.
Who Should Skip This
- ×× Skip if you want immediate Prime delivery.
- ×× Skip if you're looking for a feather-light flask.
Key Specs
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FAQ
Yes, though it's designed with hot drinks in mind, it does keep cold drinks cold.
Absolutely, it disassembles for a thorough clean.
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