A system including a pet harness device configured to encircle the pet's body and fastened to secure the pet harness device to the pet's body, a waste bag mechanism attached to the pet harness device for collecting pet waste, a front strap component having a front male fastening device, a front female fastening device configured to engage the front male fastening device to generally engage the harness waste device on the pet's body, a waste bag retention tab implement operable for attaching the waste bag mechanism, and a rear length adjustable leg strap implement into engagement with the waste bag retention tab implement, in which the rear length adjustable leg strap implement is configured to keep the waste bag mechanism in place or open whichever body or leg positions the pet may be in.