Limited Units Available

Stainless Steel Thermos with Cold-Sensitive Color Change, Lid and Straw

Stainless Steel Thermos with Cold-Sensitive Color Change, Lid and Straw

 4.8/5 from +5000 users

🕷️ Exclusive design

💪 Durable and long-lasting

🧊 Changes color with cold

🥤 With leak-proof lid and straw

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90-Day Return Guarantee

At Seritsu, customer satisfaction is our priority.

That's why we offer a 90-day guarantee from the delivery date.

If you're not satisfied with your purchase, you can request a refund under our return policy.

What's Included In Your Order

Depending on the option chosen:
1 Cup

  • 1x 700ml stainless steel thermal cup (with lid and straw)

2 Cups

  • 2x 700ml stainless steel thermal cups (with lid and straw)

3 + 1 Free

  • 4x 700ml stainless steel thermal cups (with lid and straw)

Free & Insured Shipping

Orders are processed within 1-3 business days.

Delivery usually takes 10-15 business days.

Need help? Our support team is here for you at seritsu.team@gmail.com

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Trusted by more than 5,000 customers

 
 

Frequently Asked Questions

What material is the cup made of?

Food-grade stainless steel, durable and easy to clean.

How does the color change activate?

With cold: when you add ice or a cold drink, the gradient changes color within seconds.

How long does the color-change effect last?

As long as the cup stays cold inside. As it warms up or empties, it gradually returns to its original color, ready to repeat the effect next time.

Is it a good gift?

Yes, it's one of its most popular uses: thanks to its surprise factor, it works great as a unique gift for anyone.

Is it easy to clean?

Yes, it's hand-washable with soap and water without any issue.

What's its capacity?

It has a capacity of 700 ml, ideal for daily use at home and on the go.

 
 

A Detail That Surprises

Add ice to your cold drink and watch the color change instantly. An effect that hooks you every time you use it.

 
 

More than 5,000 satisfied customers

Quality and trust in every product.
We select products designed to give you a great experience, combining quality, design and functionality.
Shop with peace of mind thanks to our 90-day money-back guarantee.

 
 

Built to Last

With a 700 ml capacity, it's made of food-grade stainless steel. It includes a lid and straw, and is built to keep your drinks ice-cold and handle daily use without losing its effect.

4.8/5 Rated by more than 5,000 customers

  • ★★★★★

    Still like new after weeks

    I've used it almost daily for weeks and the color-change effect still works just like the first day. The steel also still looks perfect, no scratches.

    Mateo

  • ★★★★★

    The color change is real

    I wasn't sure if it would be an exaggerated effect in the photos, but in person it's very noticeable as soon as you add ice. A great surprise.

    Elena

  • ★★★★★

    Keeps things cold really well

    Keeps things cold for hours and the cup itself feels good quality. Very happy with the purchase for the price.

    Sofia

  • ★★★★★

    Much better than I expected

    For the price I expected something pretty basic, but the steel feels really high quality and the color effect really catches the eye.

    Sara

  • ★★★★★

    Ideal for gifting

    I bought it as a unique gift and it was a total hit. The color-change effect surprises everyone the first time they see it.

    Laura

  • ★★★★★

    A different kind of gift

    I wanted to give something special and different, not the usual gift. This one really caught attention for the color effect and still works perfectly after a lot of use.

    Leo