Move sternum slide down to make the opening large enough for the cat’s head. Slide shoulder straps on either side of cat’s head with lead connecter over the withers/back.
Adjust side straps for a snug girth fit.
Chest piece goes between legs and side girth straps behind front legs. Snap in place. Repeat steps 3 and 4 until fit is snug. Note that the connector O-ring should rest on the belly, just behind the cat’s front legs.
You may want to release the girth strap temporarily to make the next adjustment easier. Move the sternum slide to sit just below the cat’s breastbone so it will not ride up to your cat’s throat area. Re-snap the girth snaps into place.
Position the black rubber stopper near the lead connector to keep the shoulder straps in place. Check to see that tightening the lead doesn’t result in the sternum slide riding up too high, putting pressure on the trachea. If it does, adjust the sternum slide to sit lower on your cat’s chest.