For Vakwa accessories: The materials we use are from natural leaves. Over time the materials may fray, change colour or get dirty due to wear and exposure to the natural elements (sun, rain etc...). We recommend to handle your BBCOCO piece with care. Avoid water and keep them stored in a dry place, away from humidity. You may also have it stored in an airy place. If in a humid region, please place the item in the direct sun, occasionally.