This Salvatore Ferragamo Gancini mini shoulder bag in a rich blue leather is small enough to wear under a jacket and will hold a phone, keys, cards and cash.  It is 7.5 inches square and approximately 1 inch thick. The shoulder strap is not removable, has a 20" drop and signature hardware attaching it to the bag.  The bag has full zip top and a white canvas lining. This is a perfect size bag to hold all of your essentials. Shipping only to the USA, no international shipping. 
bag width 7-1/2 inches 
bag height 7-1/2 inches
bag thickness 1 inch 
strap drop  20 inches