These branded safety glasses are perfect for youth medium head size. They have non-prescription lenses and have adjustable button strap. The WileyX CRUSH youths force series of sports eyewear have shatterproof polycarbonate lenses. They have the tendency to block 100% UVA and UVB radiation. The high-tech material makes them scratch free and provides a distortion-free vision. Temples can remove easily with a push button. Nose bridge with soft rubber makes them very comfortable and rubber temples provide a snug fit. You can avail for Rx lenses and this perfect style eyewear can wear for both on and off the field.