This wine coat is designed for a wine bag from a 31 Bag-in-Box * The opening fits all standard taps and it"s easy to lift and carry by the broad, soft rubber belt * The size can be adjusted by rolling or folding the belt and it stands stably on a non-slip rubber base * If the wine is to be served chilled, there is room for a cold pack * Fill with any beverage you like when used with disposable Beverage Bag (sold separately)