We offer the Stacked Pack, an all-in-one funnel with integrated storage to help carry and use your supplements in a new way.  The Stacked Pack has a patent pending design that securely fastens to plastic water bottles for easy, hands free use of the funnel while using the integrated storage cups to pour in your powdered drink mixes such as protein, meal replacements, pre-workouts, amino acids, and even baby formula.  The Stacked Pack has even been designed to fit snuggly inside the opening of reusable bottles such as baby bottles and metal insulated bottles.