Polyester
Effective Back Stretcher and Massager: Adhering to the natural curve of your back, it elongates the spine to reduce pressure and pain, providing the spinal decompression you need. Simultaneously, acupressure nodes gently massage your back to relieve tension and soreness. Note: Product is not intended to crack or pop your back, rather gently stretch
Memory Foam Pad and Soft Traction Cushion for Added Comfort: Our back stretching device has a supportive 100 percent premium memory foam pad wrapped inside a machine washable 3D mesh cover that cushions your spine for optimal positioning. The 3D cover has earned the STANDARD 100 label by OEKO-TEX for exceeding safety standards. In addition, the soft traction cushion provides added stability and support during your stretches