What better way to carry all of your stuff than with the MiniMass Bag from Patagonia. It has a place for everything you own except the kitchen sink.
Main flap opens to largest compartment, which houses one drop pocket, one mesh pocket, three slots for pens and a discrete and secure zippered pocket; exterior zippered pocket on flap has moisture-shedding reverse coil zipper
Front flap has reflective piping and webbing bike-light mount
Side-mounted, exterior, water bottle pocket
Fully adjustable shoulder strap
Top-side carrying handle
Body: 8.4-oz 600-denier 100% recycled polyester. Lining: 3.3-oz 200-denier polyester. Both with a polyurethane coating.