The front pocket is quite thin, but has enough room for a few loose accessories. There are 3 pen slots, a slot that nicely fits a passport, some slightly bigger than credit card slots (fits a Proporta nicely) and a zipped mesh pocket which I use for USB charger cables for the Proporta.
You can also see the zipped pocket at the top of the bag. It's fairly concealed in normal use and is big enough for a fair few loose accessories.
