Wearing with Three Buckles

• Start by unfastening the metal nesting buckle at the neck, along with the two buckles around the chest area.
• Position the harness on your dog's back with the buckles hanging on each side.
• Secure the metal nesting buckle at the neck area. Ensure it clicks into place, fitting snugly but comfortably.

To tighten:

The neck slider should be away from the handle.

To extend：

The neck slider should be close to the handle.

To tighten:
The chest slider should be away from the buckle.
To extend：
The chest slider should be close to the buckle.