A binder device including a body having a first cover and a second cover directly or indirectly pivotally coupled together and at least partially defining an inner compartment therebetween. The body further includes a binding mechanism positioned in the inner compartment, a first body securing device coupled to the body, and a second body securing device coupled to the body. The binder device includes a strap including first and second strap segments. The strap is movable between a first configuration wherein the first and second strap segments are releasably coupled together to form a continuous strap that is wearable over a shoulder of a user, and a second configuration wherein the first strap segment is releasably coupled the first body securing device and the second strap segment is releasably coupled to the second body securing device such that the first and second strap segments each at least partially defines a loop. Each loop is shaped and configured to receive an arm of a user therethrough such that the binder device is wearable on a back of the user in the manner of a backpack. Each strap segment is configured to be releasably coupled to only one of the first or second body securing devices.