Bag of changeable size

Abstract

A bag of the present invention includes a first side fabric, a second side fabric, and two lateral fabrics connected to each other to form the bag with a room therein and an opening at a top thereof. The first side fabric has a first length, which is longer than a second length of the second side fabric. The bag provides various means for closing and opening the opening of the bag and when the opening is open, the second side fabric will fall outward until the lateral fabrics are bound tight to get a bigger space for storing goods.

1 . A bag, comprising:
 a first side fabric having a top side, a bottom side, and two first long sides, wherein the first side fabric has a first length from the top side to the bottom side;   a second side fabric having a top side, a bottom side, and two second long sides, wherein the second side fabric has a second length from the top side to the bottom side longer than the first length of the first fabric;   a first lateral fabric having two lateral sides at opposite sides connected to the first long side of the first side fabric and the second long side of the second side fabric;   a second lateral fabric having two lateral sides at opposite sides connected to the other first long side of the first side fabric and the other second long side of the second side fabric; and   means for separating the top sides of the first and the second side fabrics to form an opening and for connecting the top sides of the first and the second side fabrics to close the opening, wherein the bag is under a first condition when the opening is open, and the bag is under a second condition when the opening is close.   
     
     
         2 . The bag as defined in  claim 1 , wherein under the first condition, the second side fabric has an extended portion, which is substantially perpendicular to the first side fabric, to form a bottom of the bag and a front shade portion, which is substantially perpendicular to the extended portion, to form a front side of the bag. 
     
     
         3 . The bag as defined in  claim 1 , wherein the means include a zip having two chain strips stitched to the top sides, the first long sides, and the second long sides of the first and the second side fabrics respectively and at least a slider sliding along the chain strips. 
     
     
         4 . The bag as defined in  claim 1 , further comprising a cord passing through the second side fabric, going around the first side fabric, and then passing back through the second side fabric that the cord has two sections in the bag, and a fastener fastening the cord left out of the bag. 
     
     
         5 . The bag as defined in  claim 1 , further comprising at least a flexible belt having opposite ends connected to the second side fabric. 
     
     
         6 . The bag as defined in  claim 1 , wherein the second side fabric is provided with a pocket. 
     
     
         7 . The bag as defined in  claim 1 , wherein the first side fabric is provided with an inner pocket on an inner side thereof. 
     
     
         8 . The bag as defined in  claim 1 , wherein the means include a plurality of pairs of Velcro belts on the first side fabric and the second side fabric respectively. 
     
     
         9 . The bag as defined in  claim 1 , wherein the means include a plurality of pairs of buckles on the first side fabric and the second side fabric respectively.