One cap that fits both narrow and wide mouth bottles — converts any Nalgene or CamelBak to a sip-friendly opening.
The Humangear CapCAP+ is a dual-fit bottle cap that works on both narrow and wide mouth bottles including Nalgene and CamelBak. The smaller inner cap creates a sip-friendly opening on wide-mouth bottles, and the outer cap fits standard narrow-mouth threads. In Mint Green.
Key specs:
Color: Mint Green
Fits: Narrow and wide mouth bottles (Nalgene, CamelBak, and compatible brands)
Dual-fit design — one cap for both bottle types
Creates a smaller sip opening on wide-mouth bottles
BPA-free, food-safe materials
Dishwasher safe
Why it works:
Wide-mouth bottles are great for filling and cleaning but awkward for drinking on the move. The CapCAP+ converts your wide-mouth bottle to a sip-friendly opening without buying a new bottle — and it also fits narrow-mouth bottles, so one cap covers your whole collection. Mint Green is easy to spot in a pack or on a table.
Ideal for: Hikers, backpackers, and anyone who uses Nalgene or CamelBak bottles and wants a sip-friendly cap that works on both narrow and wide mouth sizes.
