Sustainable stainless steel drinking bottles & Bio bottles

Yes, both the stainless steel drinking bottles and the biobased water bottles are completely leak-proof. The stainless steel bottles have a sturdy bamboo cap with silicone seal, while the water bottles have a tight-fitting sports cap or twist cap. So you can carry them in your bag or bike mount without worry.

The biobased water bottles are dishwasher safe, but the stainless steel bottles and bamboo caps stay at their best when cleaned by hand. Use warm water and mild soap to extend their life.

The single-walled stainless steel drinking bottles and water bottles are designed for cold drinks such as water, juice or sports drinks. They are lightweight, making them perfect for school, work, cycling or travel. Want to carry hot drinks with you? Then choose one of our double-walled thermos flasks.

The stainless steel drinking bottles are made of high quality stainless steel with a cap made of sustainable bamboo. The Retulp water bottles are produced from biobased plastic made from sugar cane. Both materials are safe, reusable, recyclable and free of BPA and toxins.

With proper maintenance, you can enjoy your bottle for years to come. Rinse it regularly, let it dry well and replace a cap or ring if necessary. Retulp offers spare parts, so your bottle doesn't have to be thrown away when it wears out; making reuse even more sustainable.

Every Retulp bottle and water bottle helps prevent disposable plastic and supports clean drinking water projects through Made Blue. In addition, our products are made from sustainable materials with a long lifespan. So with every refill you make a positive difference for people and the environment.

Yes, the biobased water bottles are light, unbreakable and child-friendly. For sports activities, they are perfect: they do not leak and fit into standard bike and backpack holders. The stainless steel bottles are sturdier and therefore popular with adults and outdoor athletes.

It depends on your daily routine. The 500 ml stainless steel drinking bottle is perfect for at your desk, in the car or during short trips. The larger 750 ml drinking bottles and water bottles are ideal for long workdays, sports moments or on the go. They offer enough capacity without being heavy, so you can always drink enough and refill less often.

This is an important point to consider when making your choice. A single-walled stainless steel bottle is super light and compact, ideal if you just want to drink water quickly and save weight. However, this bottle does not insulate; cold water becomes lukewarm over time and hot water becomes cold (and the outside becomes hot). A double-walled bottle (thermos) is slightly heavier, but will keep your drink ice cold or scalding hot for hours without the outside changing temperature.

Yes, this is an essential part of our sustainable mission. It would be a shame to throw away an entire bottle if only the cap is lost or the ring worn out. We offer loose caps for most models. This way you extend the life of your bottle and avoid unnecessary waste.

Most Retulp bottles are designed with an opening wide enough for standard ice cubes or wedges of lime and mint. This makes them perfect for making your water extra refreshing in the summer. Plus, a slightly wider opening makes cleaning with a dishwashing brush a lot easier.

No, absolutely not. We only use high-quality "food grade" stainless steel. This material is not only very strong, but also completely inert. That means it does not give off any odor or taste to your water, juice or coffee. So you taste your drink pure, just as it should be, without that weird metallic aftertaste you sometimes get with aluminum bottles.