This croc-style leather bag from Osprey is a must-have for holding all your essentials both by day and by night. Dress it down with jeans and matching patent heels, and add a little more glamour at night with a sleek black dress. The bag features an adjustable strap, two inner pockets and a further two zipped compartments for security, as well as a mobile phone pocket. It also has an easy-to-use popper fastening.