Any recommendations for a good commuting bag?
I've tried both a simple outdoor rucksack and a simple teardrop shaped courier bag which I bought as a laptop bag many moons ago but neither are very bike specific or waterproof.
The courier bag falls around to the front all the time but I like the position of the weight when it's on properly, so I'm probably after a courier bag if it will stay put on vigorous out of the saddle steep climbs.
Some form of pocket to hold my headlight battery in winter too. I used the radio/phone pouch which sits on the chest strap for this in the past.
I don't carry much. Usually just a sandwich, shirt, pants, socks, and maybe some days swimming kit or a change of chinos or different shoes. 20L should cover it. Oh and I'm in Wales where it often pisses down.
Any recomendations?


