The materials we use vary across collections, but they are indicated in the product page of the bag you are interested in. You can click on the backpack image to see the product page, and scroll down to SPECIFICATIONS for more information.
We do not use real animal leather for our products. With the exception of our apple leather products, all elements with a leather look are made with polyurethane, a synthetic leather that looks and feels similar to real leather. The material is known for being durable and easy to clean.
A selection of our products are made of apple leather, which is a biomaterial created from discarded apple skins. As far as cleaning is concerned, you may treat it the same as you would treat PU leather.
Regarding cleaning, we do not recommend machine wash as some backpacks have metal fittings that may damage your machine. If necessary, you can wash the bag by hand but do not leave the backpack to soak for too long. You can also opt to just wipe any dirty spots with a light and soft cloth, dampened with slightly soapy water.
We do not recommend dry-cleaning.