A securement system for portable bottles, intended for use in a vehicle, is disclosed and claimed herein. In one particular embodiment, the securement system is constructed from a vertical stanchion. Disposed about the periphery, on four sides, are four vertically oriented mounting channels. A top bottle holder and a bottom bottle holder are installed in a selected mounting channel. At least the top bottle holder can be adjusted vertically to accommodate bottles with various heights. The bottom bottle holder includes a platform for supporting the bottle, and both the top and bottom holder include a cradle that receives a side of the bottle. Both the top bottle holder and bottom bottle holder include releasable, hook and loop straps to hold the bottle flush and secure against the cradles. The base of the stanchion includes features for securing the stanchion in a convention L-Track, of the type typically found in transit vehicles.
