Unique Design:This cool bag has buckle and a roll top design which can free to adjust the sizeenough room to meet your needs.It is the best choice for keeping warm/cool and carrying food & drinks daily.You may also use it as a cool bags for picnic, work bag, mini school bag or even a small gym bag to keep your protein shake, towel and some after gym snack! Insulated Lunch Bag:Using durable oxford cloth outside and thick food-grade aluminum foil inside, providing good insulation to keep food fresh and warm/cold for hours. Premium Quality:The lunch bag is made of strong oxford cloth and aluminum foil, which is leak proof inside, water-repellent and wear-resistant, stain resistant.Waterproof inside and ,easy clean inner layertight seams to guard against leaks.All design will make your bag durable, sturdy, and provide years of long lasting values. Large Capacity:Reusable Lunch Bag,measured 23*16*23cm.You can roll the top up and down depends on how much you have.The length of shoulder strap is adjustable(MIN:29cm, MAX:57cm).The Back pocket with zipper suitable for coin, napkins, forks, wallet or cards, cell phone. Easy to carry:This thermal bag is portable and lightweight, it's convenient to carry to school, work, picnic, camping,fishing, etc.which can be used as lunch bag, picnic bag, cooler bag.Fashion Design,ideal for gift giving for women and men ,students on birthday, Christmas and Thanksgiving.