Sealable open-mouth bag

A flexible bag having an open top end configured to be releasably retained in a fully open condition, the bag comprising:

• a) a bag body of flexible material forming closed side walls, a closed bottom end, an open top end, and a hollow interior thereinbetween,
• b) a peripheral sleeve on the bag body adjacent to and encircling the open top end thereof, the sleeve forming an enclosed, hollow, peripheral pocket about the open top end of the bag body,
• c) an elongated strap member having opposite end portions, the strap member being freely contained within the sleeve and encircling the open top end of the bag body, the opposite end portions of the strap member exiting the sleeve closely adjacent each other and configured for connection to each other outside of the sleeve, the strap member configured, with its opposite end portions connected together, to form an outwardly-tensioned hoop that retains the top end of the bag body in fully open condition, and
• d) a flexible, bag-encircling apron member secured at an upper edge on the bag body adjacent the open end thereof and extending downwardly therefrom about the outside of the side walls of the bag body, the apron member configured to support an upper portion of the bag body a spaced distance above an underlying surface upon which the bag is to be disposed and maintain the open top end of the bag body in a substantially level, bowl-like condition against tilting and collapse to prevent inadvertent spillage of the contents of the bag.