Vertebrae guard made of hard wearing plastic lined with perforated neoprene that lets through air and heat. The inside made of 3D polyester mesh helps maintain a pleasant temperature and lets out surplus heat. Ventilation holes in the bowl allow the surplus heat to escape. Shaped bowl with a cutout that allows the bowl to form better around the vertebrae. Velcro fastening. Edge band made of a soft and flexible 100% percent polyester lycra. Feel free to match with tendon guard, article number 610112. Comes with washing bag.