Hi, I'm off to Italy this Summer with my 2 (Primary aged) children. I'm trying (without much luck) to find a bag that I can use whilst out and about everyday. I am looking for something big enough to carry a phone, purse, water bottle, tissues, etc. but would prefer to be able to have it as a crossover bag so it can be on my front at all times to keep it safe. My budget is probably around £50ish. Thank you