The Ibera Pakrak Clip-On Quick-Release Bicycle Commuter Bag is a pre-owned, soft shell bag designed for rear rack mounting on bicycles. It features a removable strap, 17-liter capacity, and a solid black color with reflective strip for visibility. The bag is made of 1680D nylon, ABS base, elastic, plastic, fabric, and has a web handle for easy carrying. It measures 17"L x 11"W x 15"H and weighs 2.3 pounds. The bag comes with an Ibera rack and is suitable for cycling.