The Sparco Horizon Tek FRESNO S3 SRC ESD combines advanced protective engineering with everyday comfort. Water-resistant upper fabric with microfibre heel reinforcement shields against moisture and abrasion, while the breathable 3D micro-perforated lining maintains airflow. The removable ergonomic insole features antistatic PU construction, complemented by a zero-perforation ultralight textile fiber anti-perforation layer for maximum safety. Non-magnetic fibreglass toe cap provides 200J impact resistance without metal components, ideal for sensitive environments. Dual-density polyurethane sole delivers anti-slip, anti-static protection with strategic heel energy absorption for reduced fatigue during extended wear.