The perfect travel mate for any journey. If you're a bikepacker you won't want to miss this. TopLoader is a large capacity top tube mounted bag giving bikepackers quick and easy access to energy bars phone wallet tools or any small essential gear they need close at hand.Polyethylene / nylon Lightweight durable water repellent and stain resistantTop tube diameter-fits 38 - 170 mmHead tube diameter-fits 38 - 52 mm23.5 x 12 x 7 cm / 9.3" x 4.7" x 2.8"