I've owned one of these for years and was wondering if it would be possible to create a minimal day kit to fit in it.
See below for link of the bag
http://www.thearmystore.co.uk/acatalog/Web_Haversack.html#SID=28
See below for link of the bag
http://www.thearmystore.co.uk/acatalog/Web_Haversack.html#SID=28