ULTRAPORTABLE PRODUCTIVITY TOOLS With their light, slim design and long battery life, X Series laptops travel easily, whether to another meeting or another country. Yet with their legendary ThinkPad performance, you sacrifice nothing in return. EPEAT Gold certified - reduced environmental impact from multiple eco-attributes. Ranked in three tiers: Bronze, Silver or Gold. Energy efficient - designed to use less energy than alternative products, potentially helping you save money and reduce your carbon footprint.