Camera bag advice for daily walks (Versapack or Vanguard)

Hi Pierre,

I bought Vanguard Heralder 38 three weeks ago.

So far, I've been impressed with the bag. The shoulder pad is soft, thick and comfortable.

http://www.photographytalk.com/photography-equipment-reviews/2390-8-excellent-features-that-won-vanguards-heralder-series-the-digital-photography-camera-bag-of-the-year-award

However, for a long walk, a backpack will certainly be more comfortable than a shoulder bag.