Rotterdam Smartphone XL Top Tube Bag

This is a larger version of M-Wave's excellent smartphone top tube bag.  Your smartphone (or touchscreen GPS) can be seen and controlled through the clear top window.  The entire bag (and zipper) are water-resistant, and the window is waterproof.  The inner compartment can be used as well as the two expanding side bags to hold your keys, wallet, and other personal items you may need on your ride (or destination!)
Clear skin for device access
Three-point attachment to prevent bag from moving
Extra-large compartment for storing personal items
Water-resistant with reflective stripes
Two expandable side bags