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🧊 kälvin insulated water bottle, 7.6 oz (225ml) - shake-to-activate hand warmer and ice pack, bpa-free, hot water bottle [silver] logo

🧊 Kälvin Insulated Water Bottle, 7.6 oz (225ml) - Shake-to-Activate Hand Warmer and Ice Pack, BPA-Free, Hot Water Bottle [Silver] Review

7

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Very good

Revainrating 4.5 out of 5  
Rating 
4.3
🌴 Travel & To-Go Drinkware, 🍽️ Kitchen & Dining

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Description of 🧊 Kälvin Insulated Water Bottle, 7.6 oz (225ml) - Shake-to-Activate Hand Warmer and Ice Pack, BPA-Free, Hot Water Bottle [Silver]

Energy Convertible Technology: The 7.6 fl oz Kälvin is a Hand warmer in the winter and cold pack in the summer! Simply shake your closed bottle up and down for five seconds to activate our special Converti-Technology and feel the temperature of your beverage on the outer wall of the bottle!. Kälvin is made for all seasons. Use during the winter as a thermos to keep your coffee warm during your commute and use it in the summer to keep your ice cold beverage frigid in the sweltering heat. Our BPA-free Kälvin leak-proof flex cap gives the user the choice of drinking at their own pace. Users can choose from the quaff narrow spout or take the entire lid off to take gulps of their favorite beverage. The lid also has a special metal loop so your Kälvin can clip in and go where you go. Not only sleek and minimalist, Kälvin can keep your drink cold for hours with its double-walled, insulated stainless steel configuration. Kälvin bottles fit in most cupholders. Using one canteen all year round is a responsible and sustainable way to stay hydrated. Not intended for Boiling Liquids: Pressure may build in the bottle causing leaks, spills or burns. Bottles should be hand washed. We want all our customers to enjoy their purchase, contact us you have questions!.

Reviews

Global ratings 7
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Type of review

Revainrating 5 out of 5

Keeps hands warm in cold weather!

I love how this bottle keeps my hands warm during the cold winter months. I add my morning coffee or tea, shake the bottle for 5 seconds and my hands get warm. Great replacement for disposable hand warmers.

Pros
  • Easy to apply
Cons
  • Hard to say

Revainrating 5 out of 5

Warm hands on cold days!

I filled my new water bottle with hot chocolate before a winter hike. Not only did he keep my drink warm, but he used it several times to warm his hands. It really works! Amazing - will buy more as gifts. I don't know how the technology works, but I'm excited.

Pros
  • A sea of positive emotions
Cons
  • No show

Revainrating 4 out of 5

Nearly perfect. on Sport Water Bottles

So close to perfection. Nothing to love here, it's a hand warmer AND a thermos in one. except you're swapping the warmth of the hands for the heat capacity. The more you warm your hands the less heat is retained, for me that's about 60% of what a regular thermos gives me in terms of heat retention time. Also, this is a premium bottle which is definitely a good buy here.

Pros
  • The Best in Their Niche
Cons
  • I'll add later

Revainrating 1 out of 5

NO insulation AT ALL!

So my purchase didn't start that well when I ordered, there were scratches on the bottle itself so I asked for a replacement. When the replacement came this bottle was the worst so I sent it back and kept the original. I've been using the bottle for a week and it keeps hot drinks hot for 1 hour at best, which sucks! I was very happy with this item but I was very disappointed.

Pros
  • Great for me
Cons
  • No instructions

Revainrating 5 out of 5

Dual hand warmer Amazing functionality

I really like this bottle. Not only does it keep my coffee warm, but it also scores with the fact that it can be used as a hand warmer. As someone prone to back pain on long trips, I no longer have to carry around ice packs or heating pads to relieve my back pain. By simply shaking the bottle, the outer surface is activated and serves as a heating pad to relax the muscles. I also like the simple, streamlined design and compact handle for easy carrying and storage. Worth the price and I highly…

Pros
  • Perfect for outdoor activities
Cons
  • Not sure

Revainrating 5 out of 5

It's Magic for Sport Water Bottles

I wasn't 100% sure what the bottle was when I bought it, a friend told me about it. Let me just say it's brilliant. Fill the bottle with hot water, shake vigorously a few times, and my arthritic hands are instantly relieved. I heat the water in the kettle, I like it when the water is hot. Please note that the water used can get very hot depending on the temperature. I use it while watching Wheel of Fortune, 30 minutes is perfect. I've been using it for about a week and I have no pain in my arms

Pros
  • Stylish and Modern Design
Cons
  • Slightly Crumpled

Revainrating 5 out of 5

Cup holder My commute

I was looking for something to store tea and keep it warm during my long daily commute. This article is the best! It not only keeps the temperature of the tea for several hours, but also serves as a hand warmer. Shake this thing up with a warm drink in it and it will instantly release the heat from the bottle. I use it every morning to keep my hands warm while waiting for my car to warm up. It has a large opening that allows me to pour tea easily and has a comfortable rubber grip at the top as…

Pros
  • Good product for the price
Cons
  • slim