GRF Long

The non-slip silicone inserts, strategically placed on the sole and instep, are designed to ensure a better fit in the shoe, improve stability during movement, reduce the risk of sprains, and enhance proprioception.

The C-shaped silicone insert, positioned on the first metatarsal bone, channels the force toward the big toe, making each step more powerful and effective. The result is greater propulsive force and improved performance during movement.

The three S-shaped silicone inserts, combined with the three diagonal inserts on the sole of the foot, support the arch and guide the proper movement of the foot. At the same time, they stimulate venous return, promoting better oxygenation of the muscles and speeding up recovery after workouts and competitions.

The silicone insert on the heel, working in conjunction with the midfoot inserts, absorbs the impact of foot strike, reducing microtrauma and inflammation. At the same time, it guides movement toward the inner part of the foot, ensuring better balance and a more effective push-off during activity.

The silicone pad on the Achilles tendon acts as a stabilizing support: it absorbs vibrations and redistributes the impact forces of each step, reducing the risk of microtrauma and both direct and indirect inflammation.

The silicone pads on the calf follow the fibers of the gastrocnemius muscle, stabilizing the muscle and reducing vibrations and microtrauma. They promote a myofascial massage effect that helps reduce inflammation, fatigue, and the risk of injury to the soleus muscle and tendon.

The silicone pads on the shin help dampen vibrations caused by impact, deceleration, and braking, thereby reducing stress on the joint and preventing inflammation.

The four silicone pads on the instep stabilize the tongue, reduce vibrations and internal micro-movements, and provide greater comfort under the laces.

The circular silicone inserts around the ankles help ensure the sock is put on correctly and improve grip with the shoes, while the striped inserts on the ankles further reduce impact vibrations.

The sponge “Cushion” inserts, strategically placed, provide softness and absorb impact-related microtrauma, reducing pressure points in the most stressed tendon areas. The result is long-lasting comfort even after many hours of activity. The elastic, breathable fabric also ensures a perfect fit.*Cushion Effect: a system of three-dimensional shock-absorbing pads.

These applications, which are made on the outside without internal fibers, reduce the risk of blisters and increase comfort during use.

The lightweight fabric promotes natural breathability in the foot and leg, helping to wick away sweat and ensuring a pleasant feeling of freshness and lightness even after many hours of wear.

The sock's design adapts to the shape of the foot and ankle, providing a natural and comfortable snug fit.

The yarn is made from recycled plastic bottles, contributing to the circular economy, environmental protection, and an eco-sustainable vision of the future.