BTW – 2015-08-17. I’m beginning to have trouble finding things to take picture of.
So here’s my EveryDay Biking bag. It’s a Arizzon Wolverine “assault bagpack” with about thirty liters capacity. It got two open lateral bottle pockets, a little pocket on the outside, and a big main compartment. It got also three little pockets (two with zips) inside the main compartment, and enough PALS to carry Maxpedition catalog.
It’s rather heavy but very, very, very sturdy. I’m using it to bring water, food, a book, batteries, clean clothes, some EDC accessories (pen, notepad, folding knife, fork, firelighter, etc.), and a jacket to work.
Outside and quickly accessible, I’ve mounted a Petzl Tikka+ headlamp flashing in red, to supplement my bike’s tiny red backlight, another Petzl headlamp (a Myo XP) that is stored in a little Blackhawk pouch when not in use (I like the idea, when sharing the road with a lot of stupid people, not only to see well but of being seen from afar), my bike keys on a vintage Simond carabineer, a can of synthetic pepper spray mostly for dogs, a Fenix UC40 flashlight I’m not using that much because of its lack of reliability, a SOG PowerPlier multitool and Panasonic shitty camera (it’s like a smartphone camera from 2009, so I don’t really care if it’s lost or broken). I’m also using a Camelbak “Chute” 75 cl bottle.
The whole rucksack weights about 10 kg when loaded but is still quite comfy to carry – and it supplement the three accessories I’ve got on my bike (a bicycle pump, a Princeton Tec Corona frontlight and a Cold Steel shovel).
About 17 km in 1 hour, mostly hills, main roads.