Back Rest is a light weight and portable support, which maintains the spine in its neutral position. It is not worn but placed on car seat, chair, bed or floor etc. Anatomic design : Maintains the natural low back curve, side supports hold the body, enhances comfort, relives the anterior pressure on the vertebras. Pu foam 50 density kg/m3 : High resilience gives better cushioning, high density gives longer functional life, soft and comfortable opened cell foam. Smart cover : Removable and washable, plush looks and gels with car or office interiors.