The right footwear accessories for the right professional use:
Our expertise as a manufacturer of technical insoles and socks
means protecting daily performance
Did you know that 80% of foot problems result from improper use? This figure serves as a reminder that at work, foot protection does not rely solely on safety shoes: it also depends on the right footwear accessories.
This is why we consider these footwear accessories to be true protective allies, just like PPE. When properly selected, they improve comfort, reduce fatigue, and enhance the daily effectiveness of safety footwear. This is the core of our dual expertise as a manufacturer of professional footwear insoles (PPE) and a designer of technical work socks: providing the right solution for the foot based on actual use, to secure footing, limit wear, and extend the lifespan of the footwear.
A more durable insole or socks better suited to field conditions and regulatory requirements are not just an “extra”: they are a concrete, economical, and responsible form of protection that makes a difference over time.
We design insoles and socks to protect professionals and their safety footwear
In the field, the foot, arch, and toes are under constant strain: standing or static positions, movement, temperature variations, friction, and repeated impacts. To mitigate these constraints, our expertise covers three main families of footwear accessories for professionals: removable technical insoles, work socks, and laces. Their role is the same: to optimize footing, enhance cushioning, limit wear, and improve comfort in safety shoes, regardless of the job role.
Design of anatomical and flat thermoformed technical insoles: comfort, hygiene, thermal protection, and safety
Designed first and foremost for comfort, our insoles draw on over 45 years of expertise to meet the major demands of professional environments.
Anti-pain / anti-fatigue / anti-shock
Our flexible insoles prioritize a high level of cushioning and shock absorption to relieve pressure points, alleviate pain—particularly joint pain—reduce fatigue in the lower limbs, and help prevent musculoskeletal disorders (MSDs) related to static postures or vibrations.
Non-standard technologies: they vary according to models and applications
Hygiene / breathability
Our insoles are designed with materials that promote ventilation, absorb moisture, and maintain comfort for sensitive feet even during long days in safety footwear.
Non-standard technologies: they vary according to models and applications
Thermal (cold / heat)
Adapted to temperature variations, our insoles improve insulation and comfort in cold or hot environments, while maintaining stable support within the footwear.
Non-standard technologies: they vary according to models and applications
Safety / specific environments
Certain insoles are designed to enhance protection in demanding contexts (heat, electricity, specific floors, etc.), to secure the foot without stiffening the footwear. In these sensitive environments, we develop ESD safety insoles capable of dissipating electrostatic charges and limiting risks related to static electricity. They maintain the electrical properties of the footwear and remain fully compatible with conductive or antistatic models, without compromising comfort or mobility.
Non-standard technologies: they vary according to models and applications
Technical Work Socks: Comfort, Breathability, and Thermal Protection
For over 20 years, our technical socks have supported professionals daily by complementing the effectiveness of footwear and insoles.
Comfort / Anti-fatigue (standing position)
In roles requiring prolonged standing, our socks provide lasting comfort, reduce sensations of warmth, and help alleviate fatigue associated with repeated foot stress.
Non-systematic technologies: they vary according to models and uses
Hygiene / Anti-odor / Breathability
Our socks incorporate technical textiles that wick away moisture, reduce friction, and sustainably improve comfort in professional settings.
Non-systematic technologies: they vary according to models and uses
Thermal (cold / heat)
Our socks are designed to accommodate temperature variations in the field. They help maintain foot comfort in cold or warm environments, especially during long days in safety footwear.
Non-systematic technologies: they vary according to models and uses
Technical laces: support, durability, and footwear security
Often considered a detail, laces actually play a key role in the overall performance of footwear in professional use. Our range is available in three types of professional laces:
Self-locking elastic laces
These ensure foot support without compression, thanks to uniform lacing that adapts to movement. They thus help prevent the risk of falls while providing real daily comfort, especially for roles involving constant movement.
Non-systematic technologies: these vary according to models and uses
Flame-retardant laces
Designed for safety footwear in accordance with the EN 15090 §7.3 standard, they are specifically used by firefighters, welders, and foundry workers in environments exposed to heat and splashes, where fire resistance is essential.
Non-systematic technologies: these vary according to models and uses
Standard professional laces
Designed in cotton or polyester, round or flat, they are resistant to wear, abrasion, and tension.
Non-systematic technologies: these vary according to models and uses
Insole and sock manufacturer: specialist expertise recognized by the industry
As specialists in footwear accessories, we do not try to “do everything”: our expertise is focused on what truly makes a difference for the foot. This specialization allows us to go beyond simple manufacturing, with the ability to anticipate changes in usage and market expectations.
We hold a simple conviction: there is no universal “best product.” Effectiveness depends on the right combination of insoles, socks, and safety footwear, depending on the job role, the duration of standing, the impacts sustained, or the level of wear. This holistic approach optimizes daily comfort and performance.
Every year, hundreds of thousands of pairs of removable insoles and socks are designed and manufactured in our workshops in France to equip demanding professionals.
Our legitimacy is rooted in the industry: as a partner of AFNOR and an active member of SYNAMAP (National Union of Prevention and Protection Market Players), we contribute to the discussions that shape the sector’s best practices. This forward-looking approach fuels our development, resulting in products that are increasingly better suited to field constraints.
What are the concrete benefits for your teams?
Well-chosen footwear accessories mean protected and valued employees. The effects measured in real-world conditions are as follows:
A reduction in workplace hardship and fatigue related to static and dynamic standing
Relief at the end of the day, particularly in the heel which is less painful, and fewer instances of tendonitis
Better long-term acceptance of wearing PPE footwear
Fabien, JLF PRO Brand Manager
