Flask is committed to reducing the plastic waste problem with the sale of sustainable mugs, cups and thermos flasks to the B2B market. Flask has been supporting Made Blue since 2023 and will donate at least 500,000 litres in this first year.

This is the impact of


since 2023:

1549000 litres

Impact mensen


people got access to water

impact co2


Tons of CO2-emissions saved

Impact plastic


tons of plastic waste prevented

impact bomen


trees saved from logging

Want to know more? Read here how we calculate this impact…

Logo MadeBlue blue portrait

About Flask

If Flask has anything to say about it, disposable packaging will be a thing of the past as soon as possible. The future is reusable! At Flask, you have come to the right place for reusable bottles, cups and mugs in all shapes and sizes. Developing and discovering innovative reusable products is what drives Flask. They are constantly searching for new materials that are as environmentally friendly as possible and, above all, are durable.

In addition, Flask supports various foundations in their fight to preserve the planet. As an ambassador of Made Blue, Flask donates 1,000 times the content of the bottles sold per order of at least 250 units. So let’s do the math: with an order of 250 bottles of 500ml, Flash donates 125,000 litres to Made Blue’s projects.

“We were looking for a charity that helps developing countries combat the use of disposable water bottles in a sustainable and transparent way. We decided to support Made Blue because it is very clear what happens with your donation. We can now show our customers exactly how many litres of water has been donated and how much waste has been saved.”

Carmen Gabriël, Flask

Personalise sustainably

Flask offers the option to have products personalized as desired. By using inkless techniques or reusing ink, the printing process at Flask is as sustainable as possible. That is why a reusable Flask product is a great promotional gift that radiates social involvement.

One litre for one litre

In our program One litre for one litre you can convert the water saving or water consumption of your product, service or organization into an equal amount of litres of clean drinking water in developing countries. Choosing a selection of customers or donating more litres is also an option. Transparency is paramount and we are happy to help you communicate about it!

Other ambassadors


Bunzl is a wholesaler of disposable items, packaging and many more products. In collaboration with Made Blue, Bunzl developed a filled and reusable bottle as a complimentary gift for, among others,…

Read more

The Good Wine

From the maker of The Good Roll: delicious wine with great looks. You would almost forget that this is organic and vegan wine with a lot of positive impact: 1000 times as much clean drinking water.

Read more


Experiencegift donates clean drinking water to developing countries via Made Blue per gift card, such as with the Hotelgift gift card: 1 gift card for 550,000 hotels worldwide.

Read more

Conservation Labs

Conservation Labs is the developer of an innovative, water-saving product: the H2know. Each H2know sold provides 1000 gallons of drinking water.

Read more
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