Lenovo ushers in the age of the "ultrabook" with the stunning IdeaPad U300s. Stylish, super-slim design meets long battery life and smart technologies. Book-shaped design: starts at just 14.9mm and 1.28kg. Designer touches: cool-touch palmrest, glass touchpad and full-aluminum shell. Long-life battery: up to 8 hours with 30 days standby time. Breathable keyboard: Intel Advanced Cooling Technology helps it stay cool on your lap. Boots in less than 10 seconds with Enhanced Experience 2.0 RapidDrive SSD technology.