My wife bought me the Copilot with the upgraded strap as a Father's Day gift in prep for our recent jaunt through Italy. I have to say, I was blow away with the bag's design and quality. I used it in two ways- as a cabin bag and as my in-town bag through Tuscany, Venice, Siena, and Dublin.
I packed it differently for each. As a cabin bag, I packed it in my "24 hours of airline errors" mode - a Bug Out bag in the event I get stuck or my luggage gets lost. As my walking around bag, the emphasis is on in-town EDC needs and prevention of pickpockets.
First thing I did was put on the included zipper pulls and throw a small carabiner on the grab handle. Clipping all the pulls into the carabiner keeps unwanted hands outta my bag. Then, I pulled the pad off the shoulder strap - way too hot in the Italian summer and I like being able to slide the bag from small of the back to the side to the front in crowds or tight sidewalks in places like Florence and on trains.
Now for the "I can't believe it all fits" parts....
Plane Mode:
Back Pocket - empty for the trolley pass-through
Main - 10" Samsung tablet, pair of socks, underwear, t-shirt, shorts, large USB power bank, Columbia ultralight rain jacket, spare sunglasses
Left- Small USB power bank w/ cables, Bluetooth earbuds in case, inflatable travel pillow, Earpeace earplugs, snack bars, gum, pad, pens
Center- Toiletries in a clear zip tube (I used a cosmetics brush bag), followed UK rules
Right- Passport, boarding docs, phone,…