Just the job!
I bought a larger Crossbody bag a few years ago for a city break in Paris and it was great - particularly when we were targeted by pickpockets on the Metro! This one was bought to use in addition to a rucksack when I am commuting to work on my scooter. It gives me easy access to my phone (with my train ticket) and then once in the office if I pop out at lunchtime I can use it again - much safer than sticking my phone in my pocket. My teenage son has also used it for his mobile when cycling to hockey. Not cheap but a great quality product (not sure about the internal pattern!)