My family called them Duluth Bags: https://en.wikipedia.org/wiki/Duluth_pack https://en.wikipedia.org/wiki/Duluth_pack They're just giant bags with straps: no

My family called them Duluth Bags: https://en.wikipedia.org/wiki/Duluth_pack https://en.wikipedia.org/wiki/Duluth_pack They're just giant bags with straps: no frame, no padding. They might be hard to find online but you should be able to find one in pretty much any outdoor shop. Maybe look for a 120L duffel with straps. Love 'em.