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Safety footwear lifespan: signs that many companies ignore

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There is a very common criterion for replacing safety footwear in Mexican companies: waiting until it breaks. As long as the worker can put it on and walk in it, the footwear “works.” The problem is that the safety footwear lifespan doesn’t end when the shoe is visually destroyed. It ends much earlier—when it stops fulfilling the function it was designed for, even if it looks fine on the outside. Footwear with a worn-out sole is no longer slip-resistant. A dented toe cap no longer absorbs impacts at its certified level. A boot with a cracked upper no longer protects against moisture or chemicals. In all these cases, the worker still believes they are protected. And that false sense of security is more dangerous than wearing no safety footwear at all. How long is a standard safety footwear lifespan? There is no universal expiration date. The safety footwear lifespan depends on three variables: intensity of use, environmental conditions, and material quality. A pair used eight hours a day in construction won’t last as long as one used four hours in a warehouse. As a general reference, manufacturers and European standards suggest inspecting safety footwear every six months under intensive use and replacing it when it shows any of the signs described below, regardless of the time elapsed. What Mexican regulations do establish is the obligation to manage it. NOM-017-STPS-2024 requires employers to have documented procedures for the inspection, maintenance, replacement, and final disposal of PPE, and to keep records of every delivery and replacement. “Replacing it when it breaks” does not meet this requirement. Signs indicating it is time to replace safety footwear Worn-out sole or loss of tread. The sole is the main slip-resistant element of the footwear. Its drainage channels and tread depth determine how much traction it offers on wet, oily, or uneven surfaces. When the tread flattens out—even partially—the footwear loses a significant portion of its protection against slips, which according to the IMSS (Mexican Social Security Institute) are one of the leading causes of workplace accidents in Mexico. Separation between the sole and the upper. In footwear manufactured with adhesives or stitching, this separation is one of the most common failures. It allows water, chemicals, and contaminants to enter, compromising the structural stability of the shoe. In footwear made with direct injection technology—like the ones produced by LICA—this risk is considerably reduced because the upper and sole form a single piece, but the footwear must still be inspected for any signs of separation. Deformed toe cap or visible impact. A steel or polyamide toe cap that has taken a significant hit may be internally damaged even if it looks intact on the outside. Visible deformation is a clear sign that the shock-absorbing material has already done its job and is not in a condition to withstand a second impact at the original certification level. That footwear must be retired. Cracked, split upper or open seams. Natural leather and synthetic materials degrade with exposure to heat, moisture, and chemicals. An upper with visible cracks no longer provides a barrier against external agents. In environments with chemical or biological risks, this can lead to direct exposure for the worker. Deteriorated insole or persistent bad odor. The insole accumulates moisture, bacteria, and mechanical wear through use. Its deterioration directly affects arch support, cushioning, and hygiene. A persistent odor that doesn’t go away with cleaning indicates deep contamination of the material. NOM-017-STPS-2024 specifically prohibits sharing footwear because of the biological risk this implies. Poor fit or deformation of the last. Footwear that has deformed from use no longer provides the lateral support or stability it was designed for. A worker who “floats” inside their footwear is more prone to sprains and falls than one wearing properly fitted shoes. After a high-risk incident. If the footwear was exposed to a significant chemical spill, a high-energy impact, or prolonged immersion in contaminated water, it must be removed and evaluated before being used again, even if there is no visible damage. Some damage to protective materials cannot be seen with the naked eye. What the standard requires in practice For companies, having a footwear replacement program is not just a good practice: it has been a legal obligation since NOM-017-STPS-2024 came into effect. This program must include the inspection frequency, retirement criteria, the person responsible for the inspection, and a documented record of each replacement with the worker’s signature. For distributors, understanding these cycles represents a direct opportunity. A customer who knows the actual lifespan of their footwear is a customer who buys regularly and trusts their supplier’s advice. Replacement is not just sales: it’s service. At LICA, we have the footwear you need when the old pair has completed its cycle Maintaining available inventory and guaranteeing reliable delivery times is as important as the footwear itself. At LICA, we have a complete line of safety footwear—work boots, PVC boots, safety sneakers, dielectric footwear, and women’s footwear—manufactured with direct injection technology and available for companies and distributors throughout the Mexican Republic. Because protection that is interrupted stops being protection. Do you want to establish a footwear replacement program for your company or expand your catalog as a distributor? Contact us or check out our safety footwear catalog. Sources: Ministry of Labor and Social Welfare (STPS) — NOM-017-STPS-2024 STPS — NOM-113-STPS-2009, Protective footwear IMSS — Occupational risk statistics, slip and fall accidents, 2023

Split composition showing soccer cleats on green grass next to black industrial safety boots on concrete floor
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High Performance Work Footwear: What Sport Taught Industry.

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Every four years, the world turns its eyes to a playing field. While goals, plays, and records capture attention, something works silently beneath every athlete: their footwear. Decades of research in biomechanics, materials, and ergonomics have turned high performance sports footwear into a piece of engineering as sophisticated as any advanced technology equipment. What few people know is that much of that evolution also reached industry — and permanently changed what we understand by high performance work footwear. The Starting Point: When Protection Was Not Enough For decades, industrial safety footwear had a single objective: prevent injuries. Steel toe cap, thick outsole, rigid leather upper. It worked, but at a high cost: fatigue, injuries from prolonged use, and worker rejection — many preferred taking risks over enduring eight hours in uncomfortable boots. The problem was not protection. Nobody, however, had thought about performance. Sport changed that conversation entirely. Athletic footwear manufacturers have spent over fifty years investing in understanding how the human foot moves, what forces act on it during sustained physical effort, and how intelligent design can improve performance and reduce injury simultaneously. As a result, those same principles, applied to the work environment, gave rise to the high performance safety footwear we know today. Shared Technology: What Both Worlds Have in Common Impact absorption. An elite soccer player may take more than 10,000 steps during a match. Similarly, a worker on a manufacturing or construction site covers between 8,000 and 15,000 steps per shift. In both cases, the outsole is the first line of defense against the cumulative impact on knees, hips, and the spine. Consequently, the shock-absorbing midsole technology that sports footwear popularized — layers of materials with different densities that absorb and distribute impact — is now part of the design of the best industrial safety footwear models, including the dual-density polyurethane outsoles that characterize several models in the LICA line. Ergonomics and arch support. The foot in motion is not a flat surface. It has an arch that acts as a natural shock absorber and that, without adequate support, generates plantar fatigue and repetitive strain injuries. High performance sports footwear pioneered the design of lasts that respect foot anatomy. Modern industrial footwear adopted this principle as a result: a well-designed insole not only increases comfort, it also reduces absenteeism from musculoskeletal injuries — one of the main hidden costs of workplace accidents. Lightweight and resistant materials. The steel toe cap was the standard for decades. It worked, but it was heavy. Therefore, the development of composite and thermoplastic materials in the sports world — where every gram matters — opened the door to polyamide toe caps that offer the same level of impact protection at significantly lower weight. Several LICA dielectric models, such as the 105PLUS and the 109PLUS-SP, use polyamide toe caps precisely for this reason: certified protection without the weight that generates fatigue during long shifts. Smart traction. The outsole design of a soccer cleat is calculated to maximize grip on specific surfaces without compromising mobility. In the same way, an outsole designed for wet surfaces is not the same as one designed for dry concrete, metal surfaces, or irregular terrain. The geometry of drainage channels, compound hardness, and tread depth are technical decisions that ultimately determine whether the worker slips or not. The Factor Sport Never Had to Consider: Certified Protection This is where the paths diverge. A soccer player needs performance; an industrial worker, on the other hand, needs performance and regulatory protection. Safety footwear must meet technical standards that do not exist in the sports world: impact and compression resistance in the toe cap, penetration resistance in the insole, dielectric properties, and resistance to hydrocarbons or chemicals depending on the job risk. In Mexico, NOM-113-STPS-2009 establishes these minimum requirements. Furthermore, no footwear that does not comply with this certification — however comfortable, lightweight, or technologically advanced it may appear — can be considered PPE. Certification is not a decorative seal: it is evidence that the footwear was subjected to real laboratory testing. LICA: Where Technology and Protection Are Manufactured Together At LICA, we apply European direct injection-to-upper technology to manufacture safety footwear in Guadalajara, Jalisco. This process, originally developed for the European high-performance industry, bonds upper and outsole in a single operation without seams or adhesives. As a result, the footwear is more durable, waterproof, and structurally sound than products made with traditional manufacturing methods. The outcome is footwear that does not force the worker to choose between protection and comfort. Because on the playing field or on the factory floor, performance matters as much as safety. Explore our complete line of safety footwear manufactured with European technology. Available for companies and distributors throughout Mexico. Contact us. Sources: ILO — Ergonomics and human factors at work, 2022 Ministry of Labor and Social Welfare (STPS) — NOM-113-STPS-2009 Journal of Sports Sciences — Studies on impact and plantar fatigue in athletic footwear IMSS — Musculoskeletal occupational injuries, 2023

Industrial worker wearing black safety boots with reinforced toe cap on a manufacturing plant floor
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Safety Footwear by Industry: How to Choose the Right One for Your Risk

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Safety footwear is the PPE that accumulates the most contact hours with the worker. An eight-hour shift means eight hours of continuous exposure to floor-level hazards: sharp objects, slippery surfaces, falling loads, electrical current, moisture, and chemicals. Yet in many companies, it remains the equipment chosen with the least technical criteria. Choosing safety footwear by industry and risk type is not bureaucracy. It is the difference between a worker who is protected and one who believes they are. What the Standard Establishes In Mexico, NOM-113-STPS-2009 specifically regulates safety footwear conditions. It establishes the minimum requirements for impact resistance, compression resistance, penetration resistance, and slip resistance that any footwear used as PPE must meet. This standard is complemented by NOM-017-STPS-2024, in force since September 2025, which requires employers to select PPE based on a risk analysis per job position and maintain documented records of delivery and replacement. Footwear without certification under these standards is not PPE. It is just footwear. Safety Footwear by Industry: What to Use and When Food and Agro-Industry In environments where floors are constantly wet with grease, blood, oils, or organic residue, the main risk is slipping and falling. The right footwear for this sector is the PVC boot, manufactured in a single piece that eliminates seams where bacteria accumulate and allows thorough cleaning. LICA offers the B-PVC-BR model (white, for food industry environments where this color is required) and B-PVC-NEG (black, for agro-industry and field work), both with certified non-slip outsoles. For environments that also require solvent resistance, the B-PVC-NR model incorporates this additional protection. Construction and Civil Works Risks in this sector are multiple and simultaneous: falling objects, nails on the ground, uneven surfaces, moisture, and mud. Footwear must include a steel or polyamide toe cap for impact resistance, an anti-penetration insole for protection against sharp objects, and a high-grip outsole for irregular surfaces. LICA work boots, manufactured with direct injection-to-upper technology using Italian machinery, provide a seamless bond between upper and outsole that increases durability and waterproofing under field conditions. Electrical Work, Installation, and Maintenance For workers exposed to electric shock risk, dielectric footwear is a non-negotiable requirement. This type of footwear uses non-conductive outsoles and materials that interrupt the flow of electrical current. LICA offers a complete line of dielectric footwear including the 105PLUS (dielectric boot with polyamide toe cap), the 107PLUS-SP (with thermoplastic eyelets and reflective strip), the 109PLUS-SP (with dual NOM-ASTM certification), and the 229N-SP (dielectric anti-penetration boot in microfiber). All are designed to meet the specific requirements of the electrical sector. Manufacturing and Metalworking In plant environments, the most frequent risks are impact from heavy objects, abrasion from metal surfaces, and spills of lubricants or oils. The steel or polyamide toe cap work boot with a hydrocarbon-resistant outsole is the standard in this sector. Safety sneakers are a valid alternative for positions where mobility and comfort are priorities, provided they include the required metatarsal and toe protection. Logistics and Warehousing Constant movement, concrete floors, and the risk of crushing from forklifts or pallets define this sector. Footwear must prioritize comfort over long shifts, toe impact protection, and a non-slip outsole. Lightweight safety sneakers are often the best option for this profile, always certified under NOM-113-STPS. Field Work, Supervision, and Outdoor Activities For personnel who combine walking on uneven terrain with site supervision or outdoor activities, LICA’s hiking line offers occupational boots with TR synthetic non-slip outsoles designed for mixed terrain. The Trepator 793SM-O model and its variants are built for this use profile. Beyond the Sector: Factors That Always Need to Be Reviewed Regardless of industry, three factors determine whether safety footwear truly does its job. Sizing and fit are critical. Tight footwear causes fatigue and pressure injuries; loose footwear reduces stability and increases the risk of tripping. The standard is clear: PPE must be the right size for each worker. Valid certification is the only real guarantee that the footwear was subjected to technical testing. Verifying that the model carries NOM-113-STPS certification is the first step before any purchase. Service life is not unlimited. A worn outsole loses traction; a dented toe cap loses its certified impact absorption capacity. NOM-017-STPS-2024 requires documenting PPE replacement. Establishing a periodic footwear inspection program is both a regulatory obligation and a concrete preventive measure. At LICA, we manufacture safety footwear with over 40 years of experience in the Mexican industrial market. Our European direct injection-to-upper technology guarantees a structural bond between upper and outsole that translates into greater durability and real protection under intensive use conditions. Our full catalog is available for companies and distributors throughout Mexico. Need guidance on choosing the right footwear for each position in your company? Contact us or browse our complete safety footwear catalog. Sources: Ministry of Labor and Social Welfare (STPS) — NOM-113-STPS-2009, Protective Footwear STPS — NOM-017-STPS-2024, Personal Protective Equipment IMSS — Occupational risk statistics, 2023

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