You feel the walking rhythm? Then this sling/backpack is really something for you. The Drummer likes to travel with you, because it is safely and securely stuck to your mobile phone pocket ;-). The larger compartment fits exactly a 33cc waterbottle. The closure over the zipper makes it theft-proof. Moreover, you can easily clip your coat or scarf here during a long walk. And sooo comfortable to wear: the shoulder strap is padded and breathable. Plus it can be attached to both the left and right, which makes it convenient to carry, whether you are left or right-handed. An absolute winner!