Here is the best piece of clothing you will ever buy. QuikFlip is a Jacket or Sweatshirt with a built in backpack. Just wear it like a regular outer garment then if it gets too warm you can convert it to a backpack. It takes less than 5 seconds to convert each way. No more carrying it in your arms or around your waist. These are all new and factory sealed. You will never want to leave home without wearing it.