Portwest Compositelite S3 WR boot, 100% non-metallic. With composite toecap and Kevlar anti-perforation sole (about 35% lighter and more flexible sole). With GORE-TEX type membrane, 100% waterproof and breathable, which offers excellent comfort in wet conditions. Durable, double density PU/TPU sole, with shock absorption, anti-static and anti-slip properties. External toe cap reinforcement extends the boot's longevity.