Abstract: A convertible shoulder bag and backpack includes: (a) a bag body defining front, back, top, bottom, first side, and second side panels; and (b) a strap defining first and second portions thereof extending between first and second pairs of connection points for connecting the first and second portions to the bag body, respectively. An interconnecting portion slidably extends between a pair of diagonally opposing connection points such that slidably increasing the length of the first portion decreases the length of the second portion and vice versa, the strap being configured to enable the convertible shoulder bag and backpack to be converted between a shoulder-bag configuration and a backpack configuration without disconnecting or reconnecting the strap. The strap may include a retractable hip belt and/or securing strap. Additionally, a tote handle may be coupled to the first and/or second portion by a length-multiplying interconnecting portion.

Abstract: A convertible shoulder bag and backpack includes: (a) a bag body defining front, back, top, bottom, first side, and second side panels; and (b) a strap defining first and second portions thereof extending between first and second pairs of connection points for connecting the first and second portions to the bag body, respectively. An interconnecting portion slidably extends between a pair of diagonally opposing connection points such that slidably increasing the length of the first portion decreases the length of the second portion and vice versa, the strap being configured to enable the convertible shoulder bag and backpack to be converted between a shoulder-bag configuration and a backpack configuration without disconnecting or reconnecting the strap. The strap may include a retractable hip belt and/or securing strap. Additionally, a tote handle may be coupled to the first and/or second portion by a length-multiplying interconnecting portion.