Captain Sanders' Shirt

Captain Sanders' Shirt is a shirt. This is Captain Sanders' shirt. It seems to have a unique model.

Source
This item is a reward from Quest:Captain Sanders' Hidden Treasure (4).

Speculation
The name Captain Sanders seems to be spoof on Colonel Sanders, the founder of KFC (Kentucky Fried Chicken), by changing Colonel to Captain, making it sound more seafaring. Colonel Sanders and KFC are associated with Long John Silvers the restaurant (named for the famous pirate Long John Silvers from Robert Louis Stevenson's novel Treasure Island) and both are owned by Yum Brand Co. (Pepsi) and often share space in the same building.