This pillow has been ergonomically designed to fit the of your legs, knees, and thighs naturally to help align your spine and help alleviate uncomfortable pressure - The legacy pillow restores the natural alignment of the spine,leading to a much more restful sleep. - Center incline accommodates natural sloping of thighs to keep pillow in place throughout the night - Legacy Leg Pillow is an orthopaedic memory foam leg cushion that provides side sleepers comfort for their lower back, hips, legs & spine - By positioning you in your natural alignment, the leg pillow is designed to help alleviate pressure points that often cause discomfort & pain. What's in the box 1x Pillow For Back,Hip ,Leg And Knee Support