Abstract: A container for retaining articles includes a pliable sack and a closure attached to an opening of the sack. The closure includes a substantially flexible member having a pair of anchors and a substantially rigid member having a pair of pivotal seats. Each of the pivotal seats is adapted to receive a respective one of the anchors of the flexible member. The closure is positionable between a closed position in which the flexible member is substantially proximate to the rigid member and an opened position in which the flexible member is substantially separated from the rigid member. The closure may be configured to have a generally circular shape when in the opened position and a generally crescent shape when in the closed position. The seats may be configured to slidably receive the anchors to minimize complexity in the manufacturing process. Each of the rigid and flexible members preferably has a unitary construction to further reduce manufacturing costs.

Abstract: A container for retaining articles includes a pliable sack and a closure attached to an opening of the sack. The closure includes a substantially flexible member having a pair of anchors and a substantially rigid member having a pair of pivotal seats. Each of the pivotal seats is adapted to receive a respective one of the anchors of the flexible member. The closure is positionable between a closed position in which the flexible member is substantially proximate to the rigid member and an opened position in which the flexible member is substantially separated from the rigid member. The closure may be configured to have a generally circular shape when in the opened position and a generally crescent shape when in the closed position. The seats may be configured to slidably receive the anchors to minimize complexity in the manufacturing process. Each of the rigid and flexible members preferably has a unitary construction to further reduce manufacturing costs.

Abstract: A container for retaining articles includes a pliable sack and a closure attached to an opening of the sack. The closure includes a substantially flexible member having a pair of anchors and a substantially rigid member having a pair of pivotal seats. Each of the pivotal seats is adapted to receive a respective one of the anchors of the flexible member. The closure is positionable between a closed position in which the flexible member is substantially proximate to the rigid member and an opened position in which the flexible member is substantially separated from the rigid member. The closure may be configured to have a generally circular shape when in the opened position and a generally crescent shape when in the closed position. The seats may be configured to slidably receive the anchors to minimize complexity in the manufacturing process. Each of the rigid and flexible members preferably has a unitary construction to further reduce manufacturing costs.

Abstract: A chalk bag for climbers includes a flexible bag structure with an internal cavity for holding chalk and an upper opening providing a passage to the cavity when open. A closure device circumscribes the opening and when open configures the opening in substantially circular shape for receiving the hand of a climber for chalking. When closed, the closure device configures opposite walls of the bag structure in engagement with one another in a substantially half-circular arcuate configuration. The chalk bag is wedge shaped in side elevation view to dispose the shape-retaining opening in vertically open disposition when the climber is standing with the chalk bag secured at the waist in the small of the back. Consequently, the climber can access the chalk within the bag easily with either hand, and may open and close the bag with either hand and with only one hand.