'Skeleton' 500mL Vacuum Flask

$79.00

Impress your physical therapy clients while you enjoy a drink that says hot – or cold – all day. If you're the gifting-type, try giving one to your favourite chiropractor or osteopath as a special thank-you.

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

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!

High-grade stainless steel + BPA-Free plastic threads (threads do not touch the drink)

Holds 500ml

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