A new altyn helmet repro by EVI the faces faceshield is aluminium i believe, and the main helmet shell is ABS, with the visor being thick acrylic. While the visor is thick durable acrylic it isn't safety rated so i can't recommend it for using in airsoft without additional eye protection like rated goggles or glasses underneath. it only came in a one size fits all. I have a 58cm head and its got a fair bit of room. the liner stock liner isn't fantastic so I will include a replacement helmet padding kit as shown in the photos. Only been tried on briefly once is in new condition. selling because I am changing my kit. any questions feel free to ask.