Our collection of INDIE ethnic backpacks are very comfortable and just the right size, they are handcrafted one by one in our workshop in Valladolid, all are unique pieces. All materials are selected to minimize environmental impact, take care of our health and thinking about the end of the useful life cycle and subsequent recycling, they are materials that are as natural and sustainable as possible. We use black denim fabric composed of GOTS certified organic cotton and GRS certified recycled cotton. 100% cotton ethnic circle outdoor printed fabric with certificates Oeko-Tex® Standard 100 - GOTS (Global Organic Textile Standard) The inner lining is 100% GOTS certified organic cotton. The extendable handles are made of 25 millimeter recycled cotton and are made in Spain. Zamak buckles finished in aged gold, nickel-free. Antique brass and zamak zipper, nickel-free. Closure with a zip, flap and recycled cotton ribbon.