Shaka Packs are made to order. Current build time, 6-8 weeks.
Tube packs can be made to bolt on or strap directly to the top tube.
Exterior shell: X-Pac waterproof fabric & Cordura 1000d fabric.
Internal liner: Waterproof nylon.
Have a closer look at materials here.
3m or similar tape under all mounting areas is recommended to protect your paint.