The Sixton Peak Montana Air S3 SRC safety boots, model 81156 in brown, size 42, provide comprehensive work protection with S3 SRC safety certification. These work shoes feature a composite toe cap and a Gevet nubuck leather upper made from full-grain leather, offering soft comfort while ensuring strength, breathability, and water-repellent properties. The Airplus 3D Dual Micro lining system ensures optimal breathability, lightweight construction, and exceptional durability. The metal-free ZERO (k) anti-penetration safety sole provides reliable protection against punctures from nails and other sharp objects, complying with EN ISO 12568 and EN ISO 20345 standards. This safety sole combines lightweight design with soft flexibility for comfortable all-day wear. The fully metal-free design ensures no interference with detection systems while reducing temperature sensitivity and minimizing environmental impact. Additional features include water-repellent properties, interchangeable dual insulation insoles, a PU/PU lightweight outsole construction with SRC slip resistance and ladder profiles, as well as antistatic protection. These boots have a height of approximately 30 cm and weigh about 1.2 kg per pair, providing balanced protection and comfort for demanding work environments. The Montana Air design focuses on practical workplace requirements with durable materials and certified safety features for professional use.