Ergonomic Elevation: Elevates your legs to level with or slightly above your heart to significantly minimize spinal pressure and improve full-body circulation.Breathable Mesh: Made of durable, weather-resistant Textilene mesh fabric attached to an alloy steel frame via a high-elasticity double-bungee cord system.Adjustable Pillow: Features a padded headrest attached by an elastic band that can easily slide down to serve as a lumbar support cushion if preferre