Hola. There is a fictional character, Jack Reacher - American silent hero type - who travels America righting wrongs (in a particularly violent way) and travels and lives only in the clothes he stands up in. When his clothes get dirty he goes into a shop, buys a new set, dumps the old ones and walks away.
Now - I must admit I have wondered about how he copes without a raincoat, toothbrush and toothpaste, razor, water for hot days, a sweater if it gets cold, rain/sun hat, handkerchief, pocket knife, and so on - although he does seem to stay in hotels and motels, and travels by bus .. but I was wondering ... well, there was "Peace Pilgrim" who walked thousands of miles in America without a pack or bedding, just the clothes she wore - though she did eventually have a smock with lots of pockets - gone now, that good sweet woman ...
... so, ... has anyone done the Camino "Jack Reacher"? Or maybe just a teeny weeny pack for carrying water and a toothbrush, no bedding and buying replacement clothes as they go? Now THERE would be a light backpack!
Anyone?