Latvian fencer Polina Rozkova competes at Rio Paralympics in customized 3D printed back brace - Latvian fencer Polina Rozkova competes at Rio Paralympics in cust... i2.wp.com/b3dgeable.staging.wpengine.com/wp-content/uploads/2016/09/latvian-wheelchair-fencer-competes-at-rio-paralympics-customized-3d-printed-back-brace-11.jpg?resize=600%2C399