A reusable parcel harness for securing a parcel to a dog's chest generally includes at least one pin bar having first and second mounting pins extending therefrom towards a latch housing, a spring-loaded latch to releasably secure the pin bar to the latch housing or pin bar in a closed configuration, a latch release mechanism, and a harness attached to the latch housing to secure the apparatus on a dog. The spring-loaded latch biases the pin bar and the latch housing towards an open configuration. A latch release processor actuates the latch release mechanism upon receipt of a locally or remotely generated latch release signal. A parcel to be secured to the harness includes a parcel body and straps extending from opposing sides of the parcel body. Each strap terminates in a mounting loop that can be secured about a mounting pin on the harness.