Abstract: Described is a convertible supply carrier which is configurable by a user as a shoulder bag or as a waist pack. The convertible supply carrier includes a front side, a back side, a top side, a bottom side, a right side, a left side, at least one enclosure, and an adjustable strap. A belt securing mechanism is attached to the back side that removably secures the adjustable strap to the back side to configure the supply carrier as a waist pack. A shoulder strap securing mechanism is attached to both the right side and the left side, wherein the shoulder strap securing mechanism removably secures the adjustable strap to the right side and the left side to configure the supply carrier as a shoulder bag. The adjustable strap is secured to the convertible supply carrier by one of the belt securing mechanism or the shoulder strap securing mechanism.