Topeak Aero Wedge Bicycle Cycle Saddle Bag with Strap Attachment: Large. The Topeak Aero Wedge Saddlebag is perfect for on the move adventures as it has plenty of room and expands to give even more space. The bag is aerodynamically styled to save weight and prevent chafing and will hold tubes and tools comfortably. Velcro strap mounting holds it firmly in place but also makes it easy to remove if you want to swap between bikes. There's also a reflective strip for added visibility and a handy rear light clip. Weighs 180g/0.40lb Capacity of 90-120ci Made with 1200 Denier Nylon, Dupont Teflon Coating