New Waterproof Construction: Keeps your belongings protected from rain, mud, and dirt with durable, waterproof materials Adjustable Capacity: Features a roll-top closure that allows you to easily adjust the bag’s size based on your storage needs Dropper Post Compatible: Designed to work seamlessly with dropper posts, offering versatility for different bike setups Soft TPE padding to protect your seatpost from scratches and damage Flexible Main Compartment Closure: The adjustable closure adapts to the size of the bag, ensuring a secure fit and reducing excess bulk.