humangear capCAP+ humangear capCAP+ Black, 2 pieces New, unused item purchased at a Montbell store. By attaching it to a wide-mouth bottle, you can convert it to a narrow-mouth bottle. Wide-mouth bottles tend to spill when drinking, but this makes it easier to drink, especially for children. It can be used with bottles other than Nalgene wide-mouth bottles, so please refer to the photos. This item has been stored at home and was originally displayed for sale in the store, so there may be minor scratches, scuffs, and bending of the cardboard backing. Please check the images for details. Please purchase if you understand these conditions.