The present invention is a bag that can quickly and horizontally wrap lunch boxes at convenience stores, etc., and prevents the contents from being unevenly distributed during transportation. It is also environmentally friendly if it is used repeatedly as an eco bag. [Solution] By passing a string through the four corners of furoshiki-like cloth (material generally used for shopping bags) and placing a lunch box at a convenience store in the center, a bag with a bottom gusset that matches the size can be held. It can be molded immediately by lifting the string of the hand part. Eliminate the bias of convenience store lunches, etc., and if it is repeatedly used as an eco bag, it will be environmentally friendly. [Selection drawing] Fig. 1【課題】本考案はコンビニ弁当等を素早く水平に包める袋で、運ぶ際の中身の偏りを防止する。またエコバッグとして繰り返し利用されれば環境にも優しい。【解決手段】風呂敷状の布など(一般に買い物袋で使われる素材)の四つ角に紐を通し、その中央部にコンビニ弁当等を置くことで、その大きさに合わせた底面マチのある袋が持ち手部分の紐を持ち上げることで即座に成形できる。コンビニ弁当等の偏りをなくし、エコバッグとして繰り返し利用されれば、環境にも優しい。【選択図】図1