DescriptionMade from high quality oxford fabric which is durable, waterproof and wear-resistant. Lining is made of durable aluminum foil which has great insulation effect.Can maintain a temperature ranging from 2℃ to 24℃ for about 12 hours in summer and around 24 hours in spring or autumn.2 mesh pockets can be used for holding other stuff unimportant, 2 small pockets in the middle of liner can hold insulin while 2 side pockets are meant to hold ice packs.Easy to open and close zipper for any age to use effortlessly, hook & loop design both on the liner and bag make this bag easily organized.3 different colors available for you to choose. DetailsMaterial: Oxford Fabric + Aluminum Foil + EPE FoamColor: Blue, Purple, Black(Optional)Size: approx. 20.