Form exploration for Tap The Cap, an add-on product for adding nutrients to your existing disposable water bottle. I provided preliminary sketch concepts for client, Solid Design for this project. Final CAD design was done by Solid Design, SF. The award-winning product is a unique concept in packaging; allowing a variety of dry additives to be infused into regular bottled water, immediately before drinking, while preserving their flavor and nutrient content. The product is currently available in the US market.