The Rail18 Thule Back Pack Bag with Shoulder Strap in black is a premium backpack designed specifically for cycling enthusiasts. With a sleek zip closure and durable construction, this rear-mounted bag is perfect for transporting gear while on the go. The Thule brand ensures reliability and quality, making this backpack a must-have for any cyclist looking for a convenient and stylish way to carry their belongings. Weighing 1272g, it strikes a balance between functionality and portability, making it ideal for long rides in the countryside.