Wonder why some briefcases stick around for years while others fall apart? It...

https://source-wiki.win/index.php/Why_Does_a_Lockstitch_Seam_Unravel_When_One_Thread_Breaks%3F

Wonder why some briefcases stick around for years while others fall apart? It often comes down to details like full-grain vegetable-tanned leather that ages beautifully and solid brass hardware built to last