Versatile cork backpack

Versatile Cork Backpack - The backpack is made of cork in a natural color. The pine wood material is used in nature, it is a degradable material, does not pollute the environment, does not destroy the nature, and there is thermal insulation material in the backpack, which can be used for cold/hot insulation, which is environmentally friendly and healthy. This product can be added with personal patterns or corporate trademarks to increase its uniqueness and be used as a gift for advertising and business promotion, which can increase the effectiveness of results.