My husband has fallen in love with https://www.militarykit.com/product_categories/rucksacks/patrol_packs/product_pages/patrol_pack_pro-force_tomahawk_elite_sf_55_litres_multicam.htmlthis [URL:https://www.amazon.com/5-11-Day-Rush-Backpack-Black/dp/B001A788JW/ref=sr_1_1?s=sporting-goods&ie=UTF8&qid=1521672486&sr=1-1&keywords=5.11%2BTactical%2BRush%2B72%2BBackpack&th=1] military backpack sold by 5.11 sold on Amazon.com for 130 USD (camel color is his favorite). It is a long shot, but if anybody happens to have one or to need a hand luggage only for their inbound flight to Argentina, please get in touch. https://images-na.ssl-images-amazon.com/images/I/911aqP13fDL._SL1500_.jpg