Head Superflex Goggle The Superflex models are one-piece, flexible frame goggles, made from soft TPR material with classic flat lenses. The material ensures an extremely comfortable, secure fit, an optimum hydrodynamic shape & a perfect seal, even over long periods. The exclusive, ergonomic, accurately adjustable, user-friendly HEAD RAS buckles are fitted to this classic eyewear model, too. Colours: transparent/blue, transparent/smoke, black/smoke, transparent/transparent