100% CALF SKIN PLAIN LEATHER. Our bags and leather accessories are made using leather from carefully selected tanneries. The leather's appearance may change over time and a beautiful sheen might appear when exposed to air and light. Markings, veins and colour variations are natural features of this material. To protect its appearance and suppleness, leather needs regular care. Avoid exposing the leather to intense light. Protect it from the rain. We recommend you have your bag waterproofed by an expert. We recommend you use specific products for leather care such as a high-quality colourless lotion, applied with a soft cloth.