Others may try, but no one can match the superior materials and craftsmanship of our deeply adjusting Zero-gravity Recliner Chair. Modeled after the NASA-recognized zero-gravity position, the position naturally assumed by astronauts in space, our newly enhanced recliner leans further back and locks into position, reducing pressure on your spine, relieving muscle tension, and improving circulation. Quick-drying, padded Sunbrella ® acrylic or Textilene ® PVC-coated mesh fabric, per availability Removable headrest in matching fabric is included Aluminum frame is built to last 4"-circumference oval tubular legs for greater stability 300-lb. weight capacity View Zero-gravity Recliner adjustment instructions (PDF format).