I love building backpacks. I just do. But the one thing that I enjoy the least, is building padded shoulder straps. Between the threads making a mess, the clearance below the presser foot not being enough, and the needle breaking because of tensioning issues, I moved away from padding shoulder straps entirely. Nonetheless, here is a example of what you can do with some patience. And I will also throw in some other pictures of the complete build for the city hiker pack.
The City Hiker Pack
The City Hiker, as the name says, is build with less outdoor and more city commute in mind. Although using the usual construction techniques of ultralight hiking/trekking packs, this particular pack emphasizes small volume and high comfort with maximum padding of the shoulder straps, and of the back panel with a thick high quality closed cell foam pad (removable).

Aesthetics has a weight cost which should not matter for daily commute, but the whole pack still only weighs in at 410g fully padded. Which makes it a great companion for a day hike as well. This packs also improves ventilation with vertical 3D mesh embedded in the back panel (instead of only on the hip belt like most ultralight packs).

Here are some more pictures of the finished pack. I apologize for the low quality pictures, I ran out of time to document the pack before gifting it.