Cognitive Surplus

Rivers & Mountains Stainless Steel Vacuum Insulated Water Bottle

€47,54

Hike all your local peaks and then navigate all the waterways you can find in your trusty kayak with this Rivers & Mountains flask to keep your tea hot and your water cold. Nothing's worse than summiting a mountain only to find your coffee's gone cold, and this flask is here to make sure that doesn't happen. Featuring an early illustration of great rivers and prominent mountains, let it inspire you to explore just a little bit further.

With a textured design for a unique tactile experience, this flask will keep your drink hot or cold until you're ready to enjoy it.

Volume 18 oz / 500 mL
Width 2.75"
Height 8.75"
Opening Wide mouth
Material High-grade stainless steel + BPA-Free plastic threads (threads not touch the drink)
Cap Material High-grade stainless steel, silicone ring
Care Hand wash (do not wash in dishwasher)

 

Fill it with your favorite mulled hot cider or cold brew, and even if you don't get around to drinking it for hours, you can expect to find your beverage ready and waiting for you at just the right temperature. The metal cap seals tightly, so it won't leak all over your bag.

Here's how it works: the space between the inner and outer flask wall is evacuated, creating a vacuum (well, a partial vacuum anyway...). In order for heat transfer to take place from the outside world into your cold drink, or from your hot drink to the outside world, it needs nearby molecules to excite. If there aren't many molecules nearby, as is the case in a vacuum, the heat's energy can't easily be passed along, so your drink stays close to the temperature it was when you put it into the flask for a really long time. 

Simply stated, vacuums make great thermal insulation!

La livraison est disponible dans toute l'Europe et le Royaume-Uni

Tarif forfaitaire 9.95
75+ livraison gratuite

Pour les commandes expédiées vers le Royaume-Uni et l'AELE
La TVA sera due à la livraison 

Les commandes sont traitées dans un délai de 1 à 3 jours (du lundi au vendredi)
Expédition par GLS et UPS dans un délai de 1 à 5 jours

Plus d'informations

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