Age: 3 years old and above.Size:S:22.5cm X 15cm X 28.5cm(8.86 X5.91 X 10.83inch)M:24.5cm X 18cm X 32cm(9.65 x 7.09 x 12.6inch)Package: 1 lunch bagClosure Type: Velcro closure, easy to open and close.Material:The surface layer is made of nylon (100% polyester fiber), scratch-resistant, stain-resistant, easy to clean.The middle is made of pearl cotton lightweight, can be folded into a notebook size, is easy to carry, convenient storage.The inside uses BPA-free food-grade aluminum film, which can keep your food warm or cold, non-toxic and tasteless, can be used repeatedly.Design:Lunch bag women print using non-toxic water-soluble dyes, fade-resistant, safe and non-toxic.The open design makes it easy for you to put in or take out food.The Velcro closure can be easily opened and closed to prevent food from falling out and also serves to stabilize the inner lunch box.The lunch bag for men is also attached with close stitching to effectively prevent the handle from breaking during repeated use and enhance the durability of the handle.Perfect gift:An insulated lunch bag is ideal for gift-giving, no matter what the holiday occasion, you will find the right pattern.Back-to-school season, school season, birthdays, anniversaries.July 4th, Halloween, Thanksgiving, Hanukkah, Christmas, and New Year's Day.Valentine's Day, Easter, St. Patrick's Day, Mardi Gras, Mother's Day, Father's Day.Occasions:School, home, office, travel, camping, field trips, outings.Warm Tips:Not washable, not dry cleanable, partial scrubbing, no ironing.