Puma safety shoe S3S Iron HD Brown Mid, 45 The Heavy Duty sole offers the perfect combination of safety and comfort. The outdoor sole meets the highest safety standards and features a non-slip octopus tread, a ladder grip and a cushioning PU midsole that optimises performance and protects the feet during work. There is also an extra high scuff cap to protect the foot when a lot of kneeling is required. CTX Waterproof Membrane is a durable, water-repellent and breathable high-tech membrane. It has a microporous fabric structure that protects the feet from waterlogging. The evercushion MAX footbed offers maximum comfort, a perfect fit and moisture regulation. It is breathable, has a non-slip textile surface and an antibacterial Hypro Odor Control coating to combat unpleasant odours. Fibreglass toe cap and flexible FAP penetration protection. Additional stability and protection: softly padded and closed dust flap, heel cap, ladder grip. Comfortable footbed: evercushion MAX. Durable sole: Heavy duty with oil-resistant TPU outsole, non-slip octopus profile for optimum grip and self-cleaning function. Cushioning: PU midsole for shock absorption.