Ortlieb Seat-Pack Support-Strap Description: Ortlieb Seat-Pack Support-Straps help keep fully loaded Ortlieb Seat-Pack Saddle bags from swaying or bouncing out of control when riding over rough terrain. Features: Additional support straps for Ortlieb Seat-Pack when fully loaded Can be used for Ortlieb Seat-Pack (11L) and Ortlieb Seat-Pack (16.5L) Straps prevent pack lowering when packed with uneven weight distribution Note: Does not include Ortlieb Seat-Pack