A retainer apparatus including a first retainer portion, a second retainer portion, a wireless transceiver, and a sensor contained within at least one of the first retainer portion and the second retainer portion. The retainer apparatus includes the first retainer portion configured to be slidably attached to a first harness strap and a second retainer portion configured to be slidably attached to a second harness strap. The first retainer portion is removably attached to the second retainer portion. The sensor is configured to detect the first retainer portion being disconnected from the second retainer portion and generate a warning signal. The wireless transceiver is configured to wirelessly transmit the warning signal to a controller in a vehicle to activate an audible warning alert to warn a user in the vehicle of the first retainer portion being disconnected from the second retainer portion.

A retainer apparatus including a first retainer portion, a second retainer portion, a wireless transceiver, and a sensor. The sensor includes a first sensor portion physically contained within the first retainer portion and a second sensor portion physically contained within the second retainer portion. The first retainer portion is removably attached to the second retainer portion. The sensor is configured to detect the first retainer portion being disconnected from the second retainer portion and generate a warning signal. The wireless transceiver is configured to wirelessly transmit the warning signal to a controller in a vehicle to activate an audible warning alert to warn a user in the vehicle of the first retainer portion being disconnected from the second retainer portion.

A retainer apparatus including a first retainer portion, a second retainer portion, a wireless transceiver, and a sensor contained within at least one of the first retainer portion and the second retainer portion. The retainer apparatus includes the first retainer portion configured to be slidably attached to a first harness strap and a second retainer portion configured to be slidably attached to a second harness strap. The first retainer portion is removably attached to the second retainer portion. The sensor is configured to detect the first retainer portion being disconnected from the second retainer portion and generate a warning signal. The wireless transceiver is configured to wirelessly transmit the warning signal to a controller in a vehicle to activate an audible warning alert to warn a user in the vehicle of the first retainer portion being disconnected from the second retainer portion.

A retainer apparatus including a first retainer portion, a second retainer portion, a wireless transceiver, and a sensor. The sensor includes a first sensor portion physically contained within the first retainer portion and a second sensor portion physically contained within the second retainer portion. The first retainer portion is removably attached to the second retainer portion. The sensor is configured to detect the first retainer portion being disconnected from the second retainer portion and generate a warning signal. The wireless transceiver is configured to wirelessly transmit the warning signal to a controller in a vehicle to activate an audible warning alert to warn a user in the vehicle of the first retainer portion being disconnected from the second retainer portion.

A retainer apparatus including a first retainer portion, a second retainer portion, a wireless signal transmitting device, a wireless signal receiving device, and a sensor. The wireless signal transmitting device, the wireless signal receiving device, and the sensor is physically contained within at least one of the first retainer portion and the second retainer portion. The first retainer portion is removably attached to the second retainer portion. The sensor is configured to detect the first retainer portion being disconnected from the second retainer portion and generate a warning signal. The wireless transceiver is configured to wirelessly transmit the warning signal to a controller in a vehicle to activate an audible warning alert to warn a user in the vehicle of the first retainer portion being disconnected from the second retainer portion.

A retainer apparatus including a first retainer portion, a second retainer portion, and a sensor comprising a motion detector and an alarm. The retainer apparatus includes the first retainer portion configured to be slidably attached to a first harness strap and a second retainer portion configured to be slidably attached to a second harness strap. The first retainer portion is removably attached to the second retainer portion. The motion detector is configured to detect movement of the retainer apparatus and activate the alarm to alert a user in a vehicle if movement of the retainer apparatus is detected.

A retainer apparatus including a first retainer portion, a second retainer portion, and a sensor comprising a motion detector and an alarm. The retainer apparatus includes the first retainer portion configured to be slidably attached to a first harness strap and a second retainer portion configured to be slidably attached to a second harness strap. The first retainer portion is removably attached to the second retainer portion. The motion detector is configured to detect movement of the retainer apparatus and activate the alarm to alert a user in a vehicle if movement of the retainer apparatus is detected.

Convertible garment systems and related devices and methods are shown and described. In one example, a convertible garment system includes a bathing suit and a pair of detachable-strap-interfaces, each configured to removably connect to the bathing suit's lower straps, and removably connect to the bathing suit's upper straps, thereby creating a second configuration for the pair of upper straps. In another example, a device includes at least one detachable-strap-interface for converting a bathing suit.

A retainer apparatus including a first retainer portion, a second retainer portion, and a sensor comprising a motion detector and an alarm. The retainer apparatus includes the first retainer portion configured to be slidably attached to a first harness strap and a second retainer portion configured to be slidably attached to a second harness strap. The first retainer portion is removably attached to the second retainer portion. The motion detector is configured to detect movement of the retainer apparatus and activate the alarm to alert a user in a vehicle if movement of the retainer apparatus is detected.

A retainer apparatus including a first retainer portion, a second retainer portion, a transceiver, and a sensor comprising a motion detector. The retainer apparatus includes the first retainer portion configured to be slidably attached to a first harness strap and a second retainer portion configured to be slidably attached to a second harness strap. The first retainer portion is removably attached to the second retainer portion. The motion detector is configured to detect movement of the retainer apparatus and transmit a warning signal, via the transceiver, to a controller within a vehicle comprising the retainer apparatus to alert a user in the vehicle if the movement is detected.