Abstract: Flexible bulk containers are configured to be liftable without the necessity of a pallet. A base of a bulk bag has a pair of tine-receiving members secured thereto. The tine-receiving members have a cross-section for creating a pair of tine-receiving channels that can receive the tines of a forklift for lifting the filled container. The tine-receiving members advantageously are substantially water-resistant. The tine-receiving members can be formed of paperboard that is treated to increase its water-resistance. For example, the tine-receiving members can each be a portion of a round or non-round paperboard tube divided along a plane containing or parallel to a central longitudinal axis of the tube. The paperboard of which the tube is constructed can comprise paperboard that is sized to increase its water-resistance.