Helmet by Fila Skates. The protective skeleton of the NRK Fun helmet is made of the latest materials and protects the head area against possible impact caused by a fall. The helmet is made with In-Mold technology - direct injection moulding of polyester into the skeleton, thus achieving excellent strength. The helmet is equipped with a comfortable inner lining and a safety fastening with the possibility of adjusting the exact fit of the head area. Quality materials, high safety standards and a sophisticated shape are the features that place this helmet among the elite.