Alpha GTX S3 - Solid Gear The SOLID GEAR Alpha GTX is a state of the art safety shoe that combines the latest technologies with a classic design. Full grain impregnated TECH leather provides the best durability. The Vibram rubber sole with its newly developed FLEX-SYSTEM technology ensures that the shoe will support your step from heel to toe. High injected PU midsole for maximum comfort and cushioning. GORE-TEX® membrane for optimal waterproofing and breathability. TECH leather CORDURA® ripstop GORE-TEX® membrane Vibram® rubber outsole Metal-free Material: Top: TECH leather and CORDURA® Lining: Water resistant and breathable GORE-TEX® membrane Outsole: Oil and slip resistant TPU outsole made of Vibram® that leaves no streaks Insole: EVA insole with double Poron® pads Cordura: is a very durable and abrasion resistant fabric with an effective property that allows feet to breathe. Vibram®: is an extra durable and robust rubber sole designed for an extremely firm grip on uneven surfaces. It is also heat resistant and can withstand temperatures up to 300 ° C. Gore-Tex®: is a thin, perforated membrane. The pores are 20,000 times smaller than water droplets, but 700 times larger than water molecules. This means that water vapor can go out through the membrane, but the water droplets cannot enter. It is 100% waterproof and has a very effective property that allows feet to breathe Safety standard: EN ISO 20345: 2011 S3, WR, HRO, SRCProtection: Composite sole and fiberglass toecapColor: BlackSKU: SG75003Read more