The Proxy Travel Pack makes it easy to indulge on the go, adding scratch protection, a flat surface on the bottom, and storage for anything you might need. Silicone Backpack: Extra storage and scratch protection. Proxy Ball Cap: 360° directional airflow for more consistent hits. Carb Cap and Tether: Keep your extract where it belongs. Mouthpiece: Protects the glass tip and makes sharing more sanitary.