Humanscale is taking the best features of the classic, renowned World Chair, and simplifying to bring the cost-effective new World One Chair. Featuring the same tri-panel mesh back and weight sensitive recline designed by Niels Diffrient, these defining elements have been updated to bring the technology into a more accessible price point – all while using fewer parts. A high-value task chair with minimal parts, the World One was designed with longevity in mind – guaranteeing it will look as good in ten years as it does today. Get ready to enjoy the most minimal, fully-functional task chair Humanscale has ever made. FEATURES Non-stretch, tri-panel mesh construction provides body-fitting contours, and a self-adjusting lumbar support for an automatic fit No unnecessary levers, locks, or tension springs to set or adjust No external lumbar parts to adjust, break, or lose Easy size adjustments fit an incredible range of body shapes and sizes Front edge is frameless to eliminate contact stress at the back of the knees Comes with standard hard casters for carpet Designed for users up to 130kg.