I wanted to find something that would let me train without having to carry my phone and keys in my hand, and the Deuter Shortrail II is perfect for this. What I appreciate most is its stability – the wide Velcro strap keeps the waist bag from shifting while running, even at a fast pace. The material is very lightweight and breathable, which I especially value in summer. Despite its simple design, it easily holds a large phone and a bottle or a soft flask. If high quality and comfort are your priorities, this belt is definitely worth its price.