One of the first things I recall my late Headmaster saying to us on a day we were going out for hike in the Country was about the importance of how you packed your rucksack (or backpack) so it didn't strain your back and making sure it was securely fastened to you so the straps didn't start cutting in to you.
No doubt as being Ex RAF he had been trained all about this stuff incase he was behind enemy lines and in any event physical fitness was worked on as bothe the mission and your own well-being depended upon it.
It no surprise he was very much working on this as much as the academic.





