Shops sell a handful of basic items and can be found in most starting cities. Talk to the NPC Jawa storekeeper. You can equip them through Position -> Items. Bear in mind that they aren't too much use yet, as most items haven't even been added in, let alone programmed. It's one of this year's goals.
"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."