If you spend a lot of time outdoors with large-gear items like trekking poles, tripods, skateboards, snowboards, snowshoes, or skis, youll appreciate the Gear Attachment Kit. Comprised of various attachment elements, this set allows you to conveniently and securely attach your sports gear to your backpackand to do it in a way that prevents rattling and shifting. All of the attachment elements can be connected to your backpacks daisy chains or the tension straps. Skiers have the option of an A-frame or diagonal configuration. DETAILS: Special set for attaching gear to your backpack Compatible with the ORTLIEB Atrack and the ORTLIEB Gear-Pack