Kanken backpacks are 10/10 on the style front and SUPER lightweight, but those straps are a joke IMO.
Got one as a lightweight camera bag with similar insert, it's perfect for short trips, would be a great commuter bag as long as your backpack is off for most of your commute.
Can easily toss it in the car and wear it from the parking lot to my desk. Would have died in college wearing it with a laptop and textbook walking for miles around campus every day.
For longer wearing those straps will drag you down.