La Sportiva's innovative outsole
The outsole of the Nucleo High GTX features the Vibram Nano sole with the innovative Impact Brake System (IBS). This system absorbs ground impact, aids in traction, and enhances downhill grip.
The asymmetrical design of the lugs allows the boot to have more contact on the ground, thus improving shock absorption and reducing fatigue.
Exclusive durable midsole in La Sportiva Nucleo High GTX
The Nucleo High GTX midsole is a compression-molded EVA with TPU inserts. These materials are durable, resistant to wear, and do not absorb water. They provide comfort and torsional stability by having control over foot rotations.
The STB Control System, a derivative feature from the mountain running line of La Sportiva, is added to the boot. This structure enables a more comfortable, stable ride.
The upper of the Nucleo High GTX is made of nubuck leather which works in conjunction with the Nano-Cell Technology. Nubuck leather is known for its flexibility and durability. Meanwhile, the breathable cells wrap the boot and provide structure. It also allows the expulsion of humidity from the boot.
Enhanced 360° breathability
La Sportiva Nucleo High GTX is equipped with Gore-Tex Surround. This technology gives waterproofing and breathability. It is mainly featured in outdoor footwear designed for warmer conditions. Warmth and moisture can vent out through the “spacer” and to the sides of the boot, keeping the foot comfy and dry in humid temperatures.
Flexible secure fit
The 3D Flex system is incorporated in the boot. It features multidirectional hinges that allow smooth movement of the ankle while maintaining its stability. Furthermore, it renders enhanced foot control and steadiness on challenging terrains by allowing more surface contact. It also secures the heel and delivers a better fit.
For added protection, the upper has a PU leather toe cap and heel. The soft, padded cuff adds comfort.