Vaude Waterproof Unisex Outdoor Bike BagSECURE ATTACHMENT: Thanks to the QMR 2. 0 system, each pannier can be easily adjusted and securely fixed to either side of the rear pannier rack. ECO FRIENDLY: The cycle panniers are made from 100% PVC free material and have been waterproofed without the use of harmful fluocarbons. WELDED WATERPROOF: The tarpaulin material of each cycling bag features welded waterproofing to keep all of your belongings completely dry and free from water damage. POCKET