SZ450B DEFCON ROYAL BLUE SAFETY SHOE S1PS FO SR ALTA SOTTOZERO

The Defcon Blu/Royal SZ450B Safety Shoe combines the softness of suede with Crystal technology for superior breathability. The ventilation system in the sole and the fiberglass toecap ensure lightness and freshness throughout the day. Rated S1PS FO SR and compliant with UNI EN ISO 20345:2022 , it ensures protection against impacts, punctures, slipping, and oils.

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Defcon Blu/Royal SZ450B: Suede Comfort and Crystal Breathability

Part of the Crystal Suede Line , the Defcon SZ450B offers flexibility, breathability, and advanced safety. Compliant with UNI EN ISO 20345:2022 and classified S1PS FO SR , it is ideal for indoor activities that require complete protection and maximum lightness.

Technical Features

  • Upper: Soft suede with Air Mesh inserts to promote air circulation.
  • Toe cap: Made of fiberglass , lightweight and impact resistant.
  • Anti-perforation insole: Made of UHMWPE, flexible and protective.
  • Insole: Removable Latex Gel + Mesh for superior cushioning.
  • Sole: Injected PU/PU with integrated ventilation system.
  • Protection Class: S1PS FO SR according to UNI EN ISO 20345:2022.

Advantages and Innovations

  • Ventilation System: Side micro-holes and an internal grille channel air towards the waterproof and breathable insole.
  • Safety Details: Reflective PU insert on the heel for greater visibility.
  • FO requirement: Sole resistant to oils and hydrocarbons.
  • SR requirement: High adhesion on ceramic and steel surfaces.

Applications and Examples of Use

Certified in safety class S1PS FO SR according to the UNI EN ISO 20345:2022 standard, this shoe guarantees excellent protection: the non-metallic anti-perforation insole in UHMWPE is tested against the penetration of 3 mm nails (PS), while the sole offers specific resistance to hydrocarbons (FO) and the maximum degree of certified grip against slipping (SR).

Thanks to the S1PS FO SR classification, the Defcon SZ450B is ideal for:

  • Logistics and indoor warehouses.
  • Maintenance workers and technicians who work in dry environments.
  • Workshops and light industry.
  • Those looking for a soft, breathable and anti-fatigue shoe.
Discover SOTTOZERO, the Italian brand founded in 1999 specialising in technical, modern, all-season workwear. Reliability, expertise and advanced logistics. On Dinamitek you find functional, safe garments designed to last.

SOTTOZERO is an Italian brand founded in 1999 and specialising in workwear designed to offer protection, comfort and style in every season. The company stands out for its attention to materials, the search for modern technical solutions and efficient logistics that ensure constant product availability.

The range includes jackets, trousers, softshells, technical sweatshirts and thermal garments designed to face demanding weather conditions, always maintaining a high level of ergonomics and freedom of movement. Each product is designed to accompany the professional in daily activities, from the site to logistics, up to the most intensive outdoor work.

Alongside clothing, SOTTOZERO offers a complete line of PPE footwear. The CRYSTAL series is appreciated for its lightness, UHMWPE protection and modern design that combines safety and prolonged comfort. The Wave-In line introduces an ergonomic structure with cushioning materials and a sole designed to ensure stability, grip and responsiveness in movement, ideal for those who spend many hours on their feet.

SOTTOZERO is the choice for those seeking a balance between functionality, aesthetics and durability. A reliable brand for professionals who work outdoors, on sites, in warehouses and in all contexts where high-performing, resistant and ready-to-use garments are needed.



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