These durable work/sport boots are built to last. Soft and durable leather upper. Soft Tailex lining for comfort and durability. Lightweight composite toe for added safety. Removable EVA cushion insert with sponge rubber heel wedge for added cushioning. Dual density Converse Athlite Traction rubber outsole with a 90 heel. ASTM F2413-05 rated composite toe and electrical hazard. 100% non-metallic so it's airport friendly.