ALPHA GTX is state of the art safety shoes with all the new technics in a very classic design. Full grain impregnated TECH leather for best in class durability. VIBRAM rubber outsole with new developed FLEX-SYSTEM technology ensures that the shoe will support your step from heel strike to toe off. High injected PU midsole for maximum comfort and rebound. GORE-TEX®-membrane for waterproofness and top of the line breathability.