Regatta Survivor 20L Backpack. The Survivor 20L is a versatile and durable pack for everything from commuting to hiking. Made from tough-wearing ripstop fabric with a mesh back construction for cooling airflow. The bag hugs the body with two shoulder straps and an adjustable chest harness. You’ll find a handy internal key clip and bungee cord on the front, for stashing wet jackets or the newspaper.