How does the Horizontal Brain Cell secure inside TOM BIHN backpacks, briefcases, and messenger bags?
The Horizontal Brain Cell has a strip of webbing across the back, with two open loops. The TOM BIHN Brain Bag and Smart Alec backpacks, Empire Builder briefcase, and ID, Super Ego, and Ego messenger bags all come with removable clips called Annex clips. You’ll squeeze the Annex clips at the top to open them, and slide them over the loop on the back of the Brain Cell, then snap the clips shut. Though the Annex clips are easy to use, most people leave their Brain Cell clipped inside their larger TOM BIHN bag for convenience.