Designed with the same idea as the Spicy Curry 2-Go Bag, the DRS Bag straddles the Yuba Fastrack rear rack, and is screwed directly in for stability and security. In addition, elastics are provided to adjust it to the Dual Rack System. 3 possibilities: Low position (sideloaders): panniers on each side of the bike with flaps. Low position (sideloaders): panniers on each side of the bike without flaps for longer or bulkier items. High position (carry-on): panniers transformed with stiffening flaps to place items on top of the rear rack, protecting them from the weather and ensuring that your cargo stays secure. Made of lightweight weather resistant Nylon, the DRS bag is a convenient solution to carrying "stuff" on the rear of the Fastrack. Only compatible with the Yuba Fastrack.