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La Sportiva
Synthesis Mid GTX Hiking Boot - Men's

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Surround your foot with better breathability and waterproof protection.

The La Sportiva Men's Synthesis Mid GTX Hiking Boot feels surprisingly breathable for a shoe equipped with waterproof protection. That's because GORE-TEX's latest-and-greatest Surround technology allows 360-degree breathability. Compared to previous waterproof, breathable membranes that only cover the shoe's upper, Surround technology wraps a membrane around the upper and sole. You'd think this would decrease the shoe's overall breathability, but La Sportive fused a sole with mesh inserts that enhance the shoe's breathability while still providing a truly waterproof experience.

The Synthesis also features a well-ventilated AirMesh upper with Nano-Cell technology for better support. STB technology unifies the midsole to the upper for a longer lasting performance, and the PU leather toe protects your foot from protruding rocks. Underfoot, the Synthesis uses a cushy compression-molded EVA midsole with cradling TPU inserts that keep your foot prime for miles. A shoe this good deserves the best sole, which is why La Sportiva used Vibram's superlight Nano rubber, and there's also an Impact Brake System for an improved downhill performance. 


  • GORE-TEX Surround
  • AirMesh upper with Nano-Cell direct injection
  • PU leather toe rock protection
  • STB technology
  • Compression molded EVA midsole with TPU inserts
  • Vibram Nano rubber sole with Impact Brake System
  • Item #LSP007H
Upper Material
AirMesh, Nano-Cell direct injection, PU leather
GORE-TEX Surround
compression-molded EVA, TPU insert
Vibram Nano, Impact Brake System
Claimed Weight
14.6 oz
Recommended Use
hiking, ultralight backpacking, speed hiking
Manufacturer Warranty
1 year