NalgeneKifaru IntlSold by Kifaru

Kifaru Intl

Humangear capCAP

2-in-1 Accessory

Cap for wide-mouth drinking bottles

Compatible Nalgene,

Nalgene, CamelBak, and most other

Capcap+ Also

Fits Hydro Flask wide-mouth, Nalgene

Small Spout

Supports spill-free drinking

Large Cap

Makes filling and cleaning easier

$12.99
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SKU: humangear-capcap

Overview

This accessory cap is built for hunters and outdoorsmen who want a more controlled way to drink from wide-mouth bottles without giving up easy filling and cleaning. It pairs a small drinking spout with a larger opening, making it practical for camp, truck, or daypack use when you need quick access without spills. The design works with Nalgene, CamelBak, and most other popular wide-mouth bottles, while the capCAP+ version also fits Hydro Flask wide-mouth, Nalgene Stainless, and Guyot Stainless. A wide, rounded strap adds a more comfortable carry and handling feel, and the capCAP+ includes added features like the CapKeeper and rubberized grips on the small cap.

Why Hunters Choose the Kifaru Intl

Compatible Nalgene,

Nalgene, CamelBak, and most other

Small Spout

Supports spill-free drinking from wide-mouth

Large Cap

Makes bottles easier to fill

Wide, Rounded

Strap is more comfortable to

Capcap+ Adds

CapKeeper to hold the small

Key Features

  • 2-in-1 accessory cap for wide-mouth drinking bottles
  • Compatible with Nalgene, CamelBak, and most other popular wide-mouth bottles
  • capCAP+ also fits Hydro Flask wide-mouth, Nalgene Stainless, and Guyot Stainless
  • Small spout supports spill-free drinking
  • Large cap makes filling and cleaning easier
  • Wide, rounded strap is designed for more comfortable holding
  • capCAP+ includes CapKeeper and rubberized grips on the small cap

Best Used For

  • Hunters who want spill-free drinking from wide-mouth bottles in camp or truck use
  • Users carrying Nalgene, CamelBak, or similar wide-mouth bottles on long outdoor days
  • Those who prefer easier filling and cleaning without giving up a smaller drinking spout
  • Anyone wanting a simple accessory cap for everyday hydration in the field

Specifications

Bpa FreecapCAP+ is 100% BPA-free
Cap KeeperIncluded on capCAP+
CompatibilityNalgene, CamelBak, and most other popular wide-mouth drinking bottles; capCAP+ also compatible with Hydro Flask wide-mouth, Nalgene Stainless, and Guyot Stainless
Food SafeYes
Large CapYes
Long DescriptioncapCAP is the civilized 2-in-1 accessory cap designed to work with Nalgene, CamelBak, and most other popular wide-mouth drinking bottles. The new, re-designed capCAP+ is also compatible with Hydro Flask wide-mouth, Nalgene Stainless, and Guyot Stainless. Most wide-mouth bottles are easy to fill and clean, but the standard opening is too big to drink from without spilling. Narrow-mouth bottles are great to drink from but you can forget about putting ice cubes in them, let alone cleaning them. And bottle inserts don’t really fix a spout that was never meant for daily drinking. capCAP offers the best of both worlds. Drink spill-free through the small spout, and then clean and fill easily with the large cap. Don’t forget that the wide, rounded strap is more comfortable to hold too. The new capCAP+ has a few additional cool features like the "CapKeeper" that holds the small cap out of the way when drinking and rubberized grips on the small cap. capCAP+ is 100% BPA-free, polycarbonate-free, and phthalate-free. Both caps are made with FDA-approved, food-safe polypropylene (#5) plastic.
MaterialFDA-approved, food-safe polypropylene (#5) plastic
Phthalate FreecapCAP+ is 100% phthalate-free
Polycarbonate FreecapCAP+ is 100% polycarbonate-free
Rubberized GripsIncluded on capCAP+
Short DescriptioncapCAP is the civilized 2-in-1 accessory cap designed to wo...
Small SpoutYes
Spill Free DrinkingYes
Type2-in-1 accessory cap
Wide Rounded StrapIncluded

Pros

  • Compatible with Nalgene, CamelBak, and most other popular wide-mouth drinking bottles
  • Small spout supports spill-free drinking from wide-mouth bottles
  • Large cap makes bottles easier to fill and clean
  • Wide, rounded strap is more comfortable to hold
  • capCAP+ adds CapKeeper to hold the small cap out of the way while drinking
  • capCAP+ is BPA-free, polycarbonate-free, and phthalate-free

Considerations & Trade-offs

  • Compatibility depends on bottle type: the standard capCAP is aimed at Nalgene, CamelBak, and most wide-mouth bottles, while capCAP+ adds support for some additional wide-mouth stainless models.
  • It is designed to improve drinking convenience, but it does not change the bottle’s wide-mouth opening for filling and cleaning, so the experience is still tied to the original bottle design.
  • The small spout is intended for spill-free drinking, which can be a trade-off if you prefer a larger opening when drinking directly from the bottle.
  • capCAP+ includes extra features such as CapKeeper and rubberized grips, but those additions are specific to the plus version rather than the standard capCAP.

Suggested Comparisons

  • Wide-mouth bottle cap accessories
  • Replacement bottle caps
  • Bottle drinking spouts
  • Hydration bottle accessories

Suggested Accessories

  • Bottle cleaning brush
  • Hydration bottle carrier
  • Replacement bottle cap
  • Insulated bottle sleeve

Frequently Asked Questions

Which bottles does the capCAP fit?

The capCAP is designed to work with Nalgene, CamelBak, and most other popular wide-mouth drinking bottles. The capCAP+ version is also compatible with Hydro Flask wide-mouth, Nalgene Stainless, and Guyot Stainless.

What is the main purpose of the capCAP?

It is a 2-in-1 accessory cap that lets you drink through a small spout while still keeping the large opening available for filling and cleaning.

Is the capCAP suitable for daily drinking from a wide-mouth bottle?

Yes. The product is intended to address the issue of wide-mouth bottles being easy to fill and clean but harder to drink from without spilling.

What extra features does the capCAP+ include?

The capCAP+ includes a CapKeeper that holds the small cap out of the way while drinking, plus rubberized grips on the small cap.

What materials are listed for the capCAP and capCAP+?

Both caps are made with FDA-approved, food-safe polypropylene (#5) plastic. The capCAP+ is also described as 100% BPA-free, polycarbonate-free, and phthalate-free.