Glass Bottle for Children "Frog" children • neoprene cover • water restructuring • programmed glass • 0.3 l
“Frog” glass bottle for kids (300 ml) is not an ordinary children’s glass bottle. The key difference lies in the material: it is made from patented “programmed” TPS glass, which according to the manufacturer is said to “revitalize” water within a few minutes. In practice, people most often describe a smoother, more balanced taste, even with tap water – which is why FLASKA is more expensive than standard glass bottles. With its 0.3 l capacity, it works well as an option for children for school or for trips and is unisex for both boys and girls. The bottle is not dishwasher safe.
Glass Bottle for Children “Frog” – Flaska
Glass Bottle for Children “Frog” (0.3 l) is suitable for school and trips as a glass alternative to plastic bottles. The manufacturer states that Flaska uses “programmed” glass (TPS), which is said to “revitalise” and “structure” the water within a few minutes (it is recommended to wait about 5 minutes and briefly shake the water).
This specific type of glass and the approach to water are what stand behind the higher price compared to standard kids’ drinking bottles. In practice, people often mention a softer, more balanced taste, even with tap water.
Glass is chemically stable, does not absorb odors or flavors, and is naturally BPA-free. BPA (bisphenol A) is a synthetic substance used in some plastics; it can migrate into beverages and is regulated in the EU, so a glass bottle is a simple way to reduce long-term contact between drinks and plastics.
The bottle comes with a green neoprene sleeve for a more secure grip and a unisex look suitable for girls and boys alike. The sleeve is removable and replaceable; the leak-proof cap is designed for reliable closing, and the bottle is not dishwasher-safe.
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Suitable for
Glass Bottle for Children “Frog” – key benefits
- Clean taste without plastic aftertaste – glass does not absorb odors or flavors.
- Water revitalization within minutes thanks to programmed glass (TPS) (it is recommended to wait about 5 minutes and briefly shake).
- BPA-free – a simple way to reduce long-term contact between drinks and plastics in your daily hydration.
- Wide mouth – you can easily add water-soluble vitamins, electrolytes, or other water-soluble supplements to your revitalized water.
- Reliable closing – the leak-proof cap helps protect backpacks from spills.
- Hand-washing – the recommended care method to keep the bottle in the same condition long-term.
- Less waste – a reusable bottle helps reduce single-use plastic bottles and packaging.
- Removable neoprene sleeve – a green design and the option to wash the sleeve if it gets dirty.
- Unisex look – green is a practical choice for girls and boys.
On pravebio you can also find other colorful kids’ bottle variants by Flaska. Popular choices include: the “Knight” bottle – blue for boys, and the “Princess” bottle – pink for little ladies.
We also think of adults – for everyday plastic-free drinking, we recommend the glass bottle Flaska – Flower of Life.
How are Flaska bottles different from “ordinary” bottles?
Compared to plastic bottles, Flaska brings the benefits of glass: it is chemically stable, so it does not trap odors or flavors, and it does not absorb colorants from beverages.
Glass is also naturally BPA-free and free from plasticizers, while plastic can, with long-term use, pick up odors or release components into the drink.
From a hygiene perspective, glass is easy to clean and tolerates hot water and thorough mechanical cleaning with a bottle brush, without forming a film on the surface. Plastic, on the other hand, is easier to scratch, and micro-cracks can reduce washability and make it harder to keep clean.
Over its life cycle, a glass bottle can have long durability when handled carefully and is fully recyclable, which reduces the need for single-use packaging. Plastic may be lighter, but it usually has a shorter useful life and maintains flavor neutrality less well after prolonged use.
In practice, glass is heavier and more fragile, but Flaska balances this with accessories. Cork or neoprene sleeves are available, and the bottles come in several sizes, so you can easily choose a version for work, sport, travel, and home serving.

Who are Flaska bottles for, and where can you use them?
Flaska bottles are suitable for everyday hydration at home, in the office, at school, and during meetings. They’re also great for sports and leisure – for fitness, yoga, hiking, and cycling. Flaska also offers kids’ bottles that help keep up a regular drinking routine at school and after-school activities.
They’re practical for travel and daily commuting – for your backpack or car, for a trip, or around the city. You can easily refill the bottle at drinking fountains or at home before leaving, so you have water within reach at all times.
Flaska bottles are made in various designs with an integrated sleeve, so you can choose a style that matches your taste and preferences. The range includes versions with a cork, neoprene, or silicone cover, in different colors and with motifs for kids and adults. The sleeve improves grip and completes the look of the bottle; neoprene sleeves are also removable and washable, while cork and silicone sleeves can be easily removed and wiped clean with a damp cloth.
Why choose Flaska
Flaska bottles are reusable glass bottles that keep water flavor-neutral and free from unwanted odors. Glass is inert and naturally BPA-free, so it doesn’t react with the drink and doesn’t release anything into it.
The brand’s identity also includes an approach the manufacturer refers to as “programmed glass” – its own way of focusing on quality and the experience of water.
Flaska bottles fit easily into everyday hydration at work, at home, while studying, and on the go. Thanks to a comfortable mouth and a quality cap, they are easy to clean and pleasant to drink from.
The brand offers several bottle sizes and various design options with a cork, neoprene, or silicone sleeve. Sleeves make the bottle easier to grip and complete its look; neoprene sleeves are also removable and washable, while cork and silicone sleeves can be easily removed and cleaned.
For long service life, hand-washing with a gentle detergent and regular airing of the cap are recommended. Reusing a glass bottle helps reduce single-use plastic packaging.
Flavor purity
A glass bottle is inert – it doesn’t react with the drink, doesn’t absorb odors or flavors, and doesn’t stain from beverages.
BPA- and plasticizer-free
Glass is naturally BPA-free and plasticizer-free, so you don’t have to deal with typical migration of substances from plastic into your drink.
A sustainable choice
A reusable bottle with a long service life and a fully recyclable material helps reduce single-use packaging.
Comfort with accessories
The most popular option is a cork sleeve for a more secure grip; a neoprene sleeve and other accessories are also available.
Easy care
Glass is easy to wash and handles hot water well; with hand-washing, aromas and colorants don’t linger inside the bottle.
Versatile everyday use
For the office, school, sports, travel, and home serving – water is always within reach and tastes the same.
Materials and workmanship
Glass Bottle for Children "Frog" is made from thick-walled European glass (so-called programmed glass (TPS)), which is chemically stable and naturally free from bisphenol A and plasticizers. The glass does not absorb odours or flavours and is suitable for everyday hydration.
The sleeve is made from a durable neoprene cover (hand-crafted) for a secure grip and comfortable holding. The cap is leak-proof with reliable sealing to help prevent liquid leaks in a backpack. All components intended to be in contact with water meet food-contact requirements.
Each piece undergoes careful assembly and inspection. To maintain its appearance and function, we recommend hand washing and avoiding the dishwasher, microwave oven and sudden temperature shocks.
Use and care
- Before first use, rinse the bottle and cap with warm water and a gentle detergent.
- Fill the bottle with tap water; for reliable sealing, place and firmly screw on the cap.
- Wash by hand only using a soft bottle brush and a mild dishwashing detergent.
- Do not use a dishwasher; avoid the microwave and sudden temperature shocks (do not pour in boiling water, do not freeze).
- After getting wet, let the neoprene sleeve air-dry freely; do not dry it on a direct heat source.
What to add to this bottle?
- ✔︎ Soaply – Dishwashing Liquid – Lime – gentle cleaning of bottles and caps, pH-neutral; helps remove odors and maintain cleanliness.
- ✔︎ Jigsaw Health – Electrolyte Supreme™ – Berrylicious – sugar-free electrolytes, easy to dissolve in water; tastes like fruit juice and supports kids’ hydration.
- ✔︎ Vegetology – Vit D3 Vitashine Spray – 1000 IU – a practical spray for easy dosing of vitamin D3 during the day.
- ✔︎ Zinzino – Children’s Chewable Multivitamins – Multify – a chewable multivitamin for kids; tops up key nutrients for the school routine and activities.
FAQ
What is Glass & Vibe technology and how should I use the bottle?
The manufacturer states that a vibrational program is imprinted into the glass and is intended to “tune” the water in about 5 minutes. How to use: fill the bottle, wait, gently swirl the water, and drink. Please treat this principle as a brand claim, not a health effect.

Is Flaska BPA-free and what materials is it made from?
Yes. Glass is naturally BPA-free and free from plasticizers, and it is inert (it does not react with the drink). Accessories mainly include cork and neoprene sleeves for protection and comfortable carrying.

Can I wash the bottle in a dishwasher?
Not recommended. Care is hand-wash only – use a soft bottle brush and a gentle detergent. This helps the bottle and sleeve keep a longer service life.

What about hot water – can I pour hot drinks into the bottle?
Hot drinks may reduce the declared “structuring” effect. Recommendation: prepare hot drinks separately and let them cool, or use special cups/glasses intended for hot beverages (the “tuning” of water is a manufacturer’s claim).

How durable is the bottle and what should I avoid?
Glass is robust, but it remains a fragile material. We recommend a protective sleeve, avoiding drops and impacts, not using the microwave, and avoiding extreme temperature shocks.

What sizes and accessories are available?
The brand offers several bottle sizes and a wide range of accessories. Available options include replaceable sleeves (cork, neoprene), replacement caps, and other add-ons for everyday use.

Additional parameters
| Category: | Eco homeware |
|---|---|
| Manufactured by: | Flaška d.o.o. Begunje 82a SI-4275 Begunje Slovenija, EU |
| Country of origin: | Slovenia |
| Vhodné pro: | Kids |
| Volume: | 0,3 l |
Meet Flaska! The programmed glass water bottle
Water structuring with Flaska
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Zakladatel slovinské značky Flaska, Maks Vrečko, je skutečný inovátor. Na nápad, který za Flaskou stojí, přišel při pěstování jahod. Pomáhal totiž manželce na jejich rodinné farmě. Protože ho typické zemědělství nezajímalo a klasické zemědělské technologie moc neznal, začal se zajímat o různé netradiční přístupy. V roce 2003 se díky tomu seznámil s procesem restrukturalizace vody. Rozhodl se provést vlastní pokus - polovinu pole zaléval restrukturalizovanou vodou a druhou polovinu normální vodou.
Nějakou dobu nebyly patrné žádné výrazné rozdíly, ale když nastal čas sklizně, rychle se ukázalo, že voda hrála důležitou roli. Jahody zalévané restrukturalizovanou vodou byly znatelně pevnější. Trvanlivost plodů se prodloužila a úroda na části pole, která byla zalévaná restrukturalizovanou vodou, byla o 18,1 % vydatnější. Na konci sezóny byly rostliny v této části výsadby vitálnější a méně napadené chorobami.
V následujících letech pak Maks v experimentech s restrukturalizovanou vodou pokračoval. Ze skeptika se stal nadšencem této technologie, která je známá již téměř 90 let, od objevů Viktora Schaubergera, průkopníka strukturování vody. Maks říká, že když nad tím zpětně přemýšlí, mělo to být naprosto logické, že zlepšení struktury vody povede i ke zlepšení jahod, vzhledem k tomu, že 89 % plodu jahod je tvořeno vodou. V té době ho to prý ale vůbec nenapadlo.
K údivu mnohých Maks v roce 2009 přestal pěstovat jahody. Měly vynikající kvalitu, odbyt byl skvělý a všichni byli spokojeni. Ale život mu říkal, že se musí poohlédnout po nových výzvách. Začal nabízet technologii strukturování vody v zemědělství. Přes vynikající výsledky testů (při pěstování ovoce, zeleniny, výrobě mléka, chovu drůbeže atd.) nebyl trh ještě připraven přijmout "neviditelnou" technologii, přestože její výsledky byly zcela zřejmé.
Po náročném roce a půl dostal nápad implementovat technologii strukturování vody do lahve pro každodenní použití. V listopadu 2009 byla spuštěna testovací série a po kladném ohlasu byla zahájena skutečná výroba. A tak se zrodila - Flaska! Na slovinský trh vstoupila 10. března 2010.
Věci se začaly hýbat kupředu rychlostí blesku - tým Flasky se rozrůstal, a brzy uváděli na trh nové modely a velikosti lahví a expandovali na nové světové trhy. Vypadá to jako pohádka, ale v reálném životě Flasku také čekaly těžké časy, zejména v letech 2012 až 2014. Toto období překonali jen díky společné práci a spoustě pozitivní energie všech zaměstnanců a partnerů. V následujících letech pak vyvinuli další naprogramované výrobky - džbán Vodan, Doggy Flasku pro psy a sklenici na pití Sirius.
Flaska nadále zdokonaluje proces restrukturalizace vody TPS. Jejich filozofie restrukturalizace vody se liší od většiny ostatních, které tuto technologii nabízejí. Pomáhají vodě vrátit se k její pramenité struktuře. Společnost Flaska zastává názor, že všichni obyvatelé naší planety by měli pít vodu co nejlepší kvality. Výrobou Flasky tak nejen zvyšují obecné povědomí o pití kvalitní vody, ale přispívají ke snižování vytváření plastového odpadu jednorázovými plastovými lahvemi.
Flaska je důkazem toho, že máme moc měnit svět prakticky každým douškem vody, kapku po kapce.

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