The Topeak Aero Wedge QuickClip is Topeak's iconic bike saddle bag. The quick clip system means you can fit and remove the bag in seconds without any faff. The bag itself comes in four sizes from micro up to large. All sizes feature a large gusseted opening for easy-access to your stuff. It is extremely hard-wearing being made from a 1000 Denier Teflon coated fabric. It features a 3M Scotchlite reflective strip on the back to help you be seen and comes with a strap for fitting a rear bike light. It will cope with all-seasons admirably. The small is the second smallest size and will can take a tube, tyre levers, CO2 canister, keys, energy bar etc.