the bag 's very , very nice and absolutely great for biking around with . these messenger bag be much better than backpack because they do not put any direct weight on you spine when you be biking .  great feature of the Amazon.com bag : a waist strap prevent slippage , a comfy shoulder pad , plenty to room for all you stuff without be too bulky , a pocket for cellphone\/pens , a really nifty internal laptop compartment which you can also use to store file , a external net pocket to stash a water bottle or any other small item , and nice safety feature - 2 reflective strip and a loop for you safety blinker light .  a word of caution about the two reflective safety strip . Becasue they be secure by detachable clip , do be careful when fiddle to open or close the bag - you may indavertantly unfasten the wrong clip and lose the reflective strip . to ensure that this do not happen you could tape up these clip .  aside from this minor point , this be a great bag . get it !