humangear capCAP+ 2-in-1 Wide-Mouth Cap
Take a swig without the splash. This humangear water bottle cap provides a handy spill-free drinking spout. It fits most standard wide-mouth water bottles, so you can use it with multiple bottles.
- 63 mm diameter fits most standard wide-mouth bottles (bottle not included)
- Double silicone gasket provides a leakproof seal on both plastic and stainless-steel bottles
- CapKeeper strap holds the small cap in place while you drink
- Rounded edges on the strap offer a comfortable carry
- Rubberized grip on the small cap is easy to twist open, even when wearing gloves
- Not for use with hot liquids
Imported.
View all humangear Water Bottle Accessories| Best Use | Multisport |
|---|---|
| Material(s) | #5 polypropylene |
| Dimensions | 3 x 1.75 inches |
| Weight | 1.41 ounces |
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Game changer for wide-mouth Nalgenes
I've owned a number of capCAPs for years and am glad to see them at REI. This cap is really a game changer if you like wide mouth bottles. I have one on all my Nalgenes. Big opening for filling and cleaning, small open for easy drinking. I've dropped these many times and they are bomber. I hardly ever use the little cap holder thingy on the strap. Someone also showed me you can pull the large loop of the big cap and then attach that to the neck of your bottle (kinda like the original Nalgene cap) - that way your cap is always tethered to the bottle (see pics). Worth every penny and can't imagine drinking from a Nalgene without one.
Best of both worlds!
Wide mouth Nalgenes are hard to drink from, and narrows are hard to clean. Now you van have a cleanable bottle that you can actually drink from without spilling on yourself!
Favorite Nalgene Accessory
Huge fan of the humangear capCAP. It beats drinking out of the wide mouth opening of my Nalgene and I love using the handle to strap it to the outside of my pack.
LOVE IT!
So happy I found this. The capcap lets me drink spill free without making refilling or cleaning a chore. Looks cool too.

