A convertible pet-carrying and backpacking backpack that comprises a backpack body defining one or more internal compartments and an open top operable to allow the head of a pet to extend therethrough. The backpack body further comprises shoulder straps extending from the front of the backpack body, and paw holes disposed on the front of the backpack body above the shoulder straps. The paw holes are operable to allow paws of the pet to extend therethrough. The backpack can further comprise an accessory bag operable to selectively attach to and detach from the backpack body at a first position where the accessory bag extends from the back of the backpack body so that the backpack is in a pet-carrying configuration, and a second position where the accessory bag covers the open top of the backpack body so that the backpack is in a backpacking configuration.

A multi-purpose bag includes a bag unit and two straps. The bag unit has a bag bottom, a front bag segment, a rear bag segment, and two limiting passages formed on the rear bag segment. The straps are crossed over each other. Each strap extends movably through a respective one of the limiting passages, and has an adjustment strap portion. Each strap is movable to transform between a shoulder bag state, where the adjustment strap portion of each strap has a first length, and the straps cooperate with the bag unit to define a shoulder space, and a backpack state, where the adjustment strap portion of each strap has a second length greater than the first length, and each strap cooperates with the bag unit to define a back hanging space.

Modular bag system having one or more base bags and a plurality of attachable gear sets. In some configurations, a base bag or a gear set includes a pocket flap that easily moves from an external orientation to an internal orientation to permit access to the pocket. In some configurations, a bag has a strap arrangement that converts from a two-strap arrangement to a single-strap arrangement.

Embodiments are directed to a reversible bag including a first fabric assembly defining an outer surface, an inner surface, and a first volume. The outer surface includes a first fastening location, a second fastening location, and at least two closing mechanisms. The second fabric assembly is coupled to the inner surface and includes a second larger volume. The second fabric assembly includes top and bottom surfaces and can be inserted through at least two closing mechanisms. The reversible bag includes at least one strap that includes a first end coupled with the first fastening location on the outer surface and a second end coupled with the second fastening location of the outer surface. The reversible bag includes a first bag wing coupled to the outer surface adjacent to the first fastening location and a second bag wing coupled to the outer surface adjacent to the second fastening location.

A convertible carrying case has a carrying strap, a first end of the strap is attached to the case housing near the top panel and the second end of the strap is slidably attached to an L-shaped guide member, the L-shaped guide member positioned at the periphery of the rear panel of the carrying case and adjacent the bottom panel and one side panel of the carrying case. The second end of the strap freely moves along the L-shaped guide member as the user manipulates the case between a rear carrying configuration, where the case is worn on the user's back, and a productivity configuration, where the case is supported against the abdomen of the user and the rear panel of the case is oriented upwardly, providing access through a flap on the rear panel to a laptop computer or other electronic device.

Modular bag system having one or more base bags and a plurality of attachable gear sets. In some configurations, a base bag or a gear set includes a pocket flap that easily moves from an external orientation to an internal orientation to permit access to the pocket. In some configurations, a bag has a strap arrangement that converts from a two-strap arrangement to a single-strap arrangement.

Multi-functional carrying systems, methods, and devices include a multi-functional carrier bag with a central body from which a first stabilizer strap and a second stabilizer strap extend. The multi-functional carrier bag is usable in first carrying position with the central body positioned at a front of a user (e.g., a front torso or lap). The user can grab the second stabilizer strap and pull the multi-functional carrier bag across their body, rotating it until the central body is in a second carrying position at a rear of the user (e.g., on a back, upper torso). With the multi-functional carrier bag in the second carrying position, the second stabilizer strap extends from a side of the central body to attach to a strap connector disposed on the first stabilizer strap to form a three-point connection (e.g., a T connection) on a chest of the user.

Embodiments are directed to a reversible bag including a first fabric assembly defining an outer surface, an inner surface, and a first volume. The outer surface includes a first fastening location, a second fastening location, and at least two closing mechanisms. The second fabric assembly is coupled to the inner surface and includes a second larger volume. The second fabric assembly includes top and bottom surfaces and can be inserted through at least two closing mechanisms. The reversible bag includes at least one strap that includes a first end coupled with the first fastening location on the outer surface and a second end coupled with the second fastening location of the outer surface. The reversible bag includes a first bag wing coupled to the outer surface adjacent to the first fastening location and a second bag wing coupled to the outer surface adjacent to the second fastening location.