[REVIEW] capCAP by humangear

Today’s review is for a product that will only cost you about $6. It isn’t much, and it doesn’t take up a lot of space, but some of you may wonder why you didn’t buy something like this a lot sooner!

The capCAP by humangear :


The capCAP is a cleverly designed alternative to the very basic lid or cap that comes with your widemouth drinking bottle. I use a 32 oz Nalgene bottle as my daily water bottle. While the twist-off cap that comes with a Nalgene or Camelbak bottle may not necessarily be bad or poorly constructed, it could definitely be better. Here’s where the capCAP comes in:

A side by side comparison. (the capCAP is on the left).

A side by side comparison. (the capCAP is on the left).

The capCAP screws on just like the old cap does… so what is so good about it?

The top part of the capCAP, the blue part, screws off to create a smaller drinking spout. This makes drinking from the widemouth version of the bottle much easier. There is no worry of hitting your nose on the top of the bottle and it makes ‘drinking on the go’ much easier — I find it difficult to drink from the standard cap while walking because the water sloshes about and spills from around the edges of my mouth.

The blue part (other colors are available from humangear) is rubberized, so it’s very easy to unscrew. And it only takes one full rotation to screw on and off.


I’ve been using this cap for about 2 or 3 months now — and it’s nearly the perfect cap, in my opinion. Nalgene should work with capCAP to ship all of the bottles with a cap like this.

But yes, I said ‘nearly the perfect cap’ — so what could be improved?

Well, it’s BPA free and made with FDA-approved food-safe plastic, so that’s good!

Here's Kitty, checking for any harmful chemicals in the capCAP. None!

Here’s Kitty, checking for any harmful chemicals in the capCAP. None!

OK, so the main thing that bothers me about this cap is the fact that the base of the cap AND the smaller cap both twist on and off in the same direction. So, for example, if the smaller cap is screwed on very tightly, unscrewing it might actually require enough force that the base unscrews with it as well. The smaller cap, on the top, should tighten in the OPPOSITE direction of the base. It would take a bit to get used to, at first, but it just makes more sense.

Another issue with this cap — and I saw that many people shared in this concern with me as I browsed some of the reviews on Amazon.com — is an odor issue. Some people claim that the rubber on the top of the cap absorbs smells of other foods (if the water bottle was packed in a lunch box, for example). Others say that the inside of the cap retains odors of any beverages in the bottle and must be washed very thoroughly after EVERY use.

I don’t have any experience with the above complaints, because I haven’t packed my bottle with other food, and I only use my Nalgene bottle for water. But I’ve noticed that if I don’t drink from my full Nalgene within a day or two, when I come back to it and unscrew capCAP, it stinks. It just… smells … like …. I don’t know, like old Tupperware or something. Like plastic that just really needs to be rinsed out and washed. I never had this issue while using the basic cap with my Nalgene bottle. It’s not a big enough problem to make me stop using capCAP, because it’s a super handy little cap with a great design, but it may be enough for me to reconsider buying another one, if it ever comes up.

I rate the capCAP by humangear 3 out of 5 stars:


Hopefully they’ll be able to use some different materials and get rid of the odor problem, because humangear is really onto something special with this cap (and by the looks of the ratings on Amazon, most people seem to agree with me!)

Screen Shot 2014-04-15 at 1.25.43 PM


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