Abstract: A flexible pouch for holding a fluid includes a front and rear side that together define a compartment, a rim, and a spout. The compartment is for holding a fluid and has a longitudinal axis that extends through the long axis of the compartment and a transverse axis that is perpendicular to the longitudinal axis. The rim is provided around the compartment and is formed by coupling the front and rear sides together. The spout is positioned at a top end of the pouch. The spout has a notch defined in the top end thereof and has a convex shape on a top cut edge thereof. The rim has a bottom cut edge that has a continuously concave shape from one side of the pouch to the other side of the pouch.