Here are installation instructions for your new StrapperKeepers!
Step 1: Adjust your Chacos to the desired fit,
Step 2: Position the excess pull strap parallel to the heel strap.
Step 3: Place your StrapperKeeper between your skin and the heel strap. Make sure the black webbing is facing the strap and the snap is toward the sole of your sandal.
Step 4: Fold your StrappeKeeper down, over both the heel strap and excess pull strap, then fasten your StrapperKeeper.