Set of 2 Rucksack Reetakun Ice Pack Cases for School Perfect for Commuting Backpacks, (Black)

※Ice packs are not included [Main body] Approx. 15 x 20 cm [Weight] Approx. 25g Material: [Outer fabric] 100% polyester [Lining fabric] 100% polyester (aluminized) Material: [Belt] Polypropylene [Zipper/Button] Polyethylene Keeps the space between your backpack and your back cool An ice pack case for backpacks that reduces sweat and stuffiness in your backpack during the hot summer. Put a commercially available ice pack inside to cool your back. Prevents heatstroke when carrying a backpack. It can also be used for school bags. Its black color makes it unobtrusive when attached to a backpack, and the aluminum interior keeps it cool. [Main body] Approx. 15 x 20 cm [Weight] Approx. 25g [Material] [Outer fabric] 100% polyester [Lining] 100% polyester (aluminized) [Belt] Polypropylene [Zipper/Button]: Polyethylene