An updated and improved version of their popular wedge pack, the Topeak Wedge Pack II (Small) saddle bag is made using durable 1000 denier, with a wrap around zipper and an extra-long 3M reflective strip for added safety at night.It\'s clean shape easily holds tubes, tools and other small items safely as you ride. The included rain cover protects the bag\'s contents if you get caught out by bad weather. The Wedge Pack II also features a light clip for extra safety.QuickClick attachment with Seatpost Strap Capacity: 0.8 Litre (50 cu. in.) Material: 1000 Denier Nylon 3M Reflective Strip RedLite Clip Rain Cover  Size (L x W x H) 16.5cm x 10.5cm x 11.8cm (6.5” x 4.1” x 4.6”)  Weight: 135g (4.75oz) QuickClick is Topeak\'s clever quick release mounting system that allows fast and easy tool-free mounting and removal. A simple slide and click, and the bag is secure. A simple push of a button unlocks the system for easy removal.