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Eco Vessel Stainless Steel Insulated ReviewPrice: $22.00 List | $16.95 at Amazon - 23% off
Pros: Insulated stainless steel, easy to clean, leak proof
Cons: Hard to drink from, super heavy, hard to use handles
Bottom line: Difficult to use and heavy make this eco-friendly sippy disappointing to us
This stainless steel sippy was a cup we really wanted to like. It is made with some of our favorite sippy materials, and had features like handles and insulation we really like to see. However, overall it failed to impress us. While it did do well in the leak categories, it was harder to drink from than just about any other cup we tested. Scoring a 1 out of 10 for ease of drinking, this cup tied with other NUK Spout cup NUK Active Cup with Silicone Spout, which frankly wasn't a surprise since they have the same spout. If this cup changed spouts it would probably earn more points, rank higher in our test, and be a real contender for the Top Pick for insulated, which was won this year by Thermos Foogo Phase 3 Insulated Sippy Cup. Given the other steel insulated options available, this was just not a cup we could recommend.
RELATED REVIEW: The Best Toddler Sippy Cup Review
Our Analysis and Hands-on Test Results
The Eco Vessel Stainless Steel Insulated Sippy with NUK Spout claims to be easy to drink, easy to hold, easy to clean, and has the ability to keep contents cold for hours. This insulated sippy is made with two layers of vacuum sealed food grade stainless steel. It contains no BPA, phthalates, or liner. The cup only has a few parts; they include an integrated handle and neck that accommodates a ring, and NUK spout. It is a simple cup that comes in a few different colors as well as natural steel. This cup weighs about 1 pound, and is widely available online.
This cup was just as hard to drink from as the other NUK Spout cup we tested. The ease of sucking was the worst out of the cups we tested, meaning it was the hardest cup in our tests to drink from. Even when we tried to use more of a suckling motion it still didn't work great. We almost had to bite the spout to get liquid to come out, and even if we did get some out, it wasn't a consistent flow rate. This meant the cup also might contribute to oral hygiene problems depending on the type of liquid it holds. Given the American Dental Associations recommendation that toddlers use valve free cups to avoid excessive sucking, this cup required more sucking than just about any other cup we tested, so it failed to earn points for this health consideration.
This cup was also heavy, weighing in at a whole pound, it was the heaviest cup
This cup was more difficult to grip than other cups we tested. While it had handles on it, the handles were fairly small and close to the cup body, it was a little difficult for some toddler users to get there hands in the holes and to adjust the cup properly to drink from the spout at just the right angle. While handles seemed to help most cups, and are certainly nice on a cup this heavy, they just weren't done well, and we think the cup would have been better off without them, or with a bigger grippier option.
While this cup had many of the attributes we revere in a sippy cup, like being leak free and eco-healthy, it failed in the ease of use category. As a matter of fact, it scored lower for ease of use in our tests than any other cup. The difficulty sucking, combined with the heavy weight and almost useless handles, meant this cup was one that just didn't get used. So no matter how awesome its other attributes, we doubt toddlers will make this a cup of choice. Therefore, this is not a cup we recommend.
If you are looking for a good stainless steel insulated cup, our Top Pick for Insulated, the Thermos Foogo Phase 3 Insulated was a great cup. It was easy to drink from, easy to clean, and cheaper than the Eco Vessel Insulated Sippy.
— Juliet Spurrier, MD and Wendy Schmitz
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