Patent ID: 8801286

Claim:
A storage bag having an inside space formed as a storage space capable of storing an object, the storage bag comprising: a hollow cylindrical body having a first end and an opposite second end; and a bottom provided at the first end of the body, the bottom closing the first end of the body, the body and the bottom forming the inside space of the storage bag, wherein the second end forms a storage opening, wherein the body has a circumferential direction and a lengthwise direction, and wherein the body is made of fabric with warp and weft fibers interlaced with each other in perpendicular warp and weft directions, wherein the warp and weft directions of the respective warp and weft fibers are both angled at approximately 45 degrees with respect to the circumferential direction and the lengthwise direction of the body, and wherein an expansion-contraction ratio in the circumferential direction is approximately equal to an expansion-contraction ratio in the lengthwise direction such that after expansion of the body of the storage bag in the circumferential and lengthwise directions a restoring force of the fabric contracts the body approximately equally in the circumferential and lengthwise directions.