When is a cycling bag not a cycling bag? My answer to you is this. This.
It’s this.
The Gramicci Japan Sacoche Bag is ostensibly (love that word) a bag for cyclists, but it’s a free country and as such you can use this, wear it and show it off when you’re nowhere near two wheels. Look at the stick man on it, too. How good is Gramicci?
Get yours at Oi Polloi
