The Spire GTX is a low cut mid-duty waterproof hiker/backpacking boot featuring 360 degree breathability from the Gore-Tex Surround Technology and an innovative STB control system.
Sizing & Fit: Runs BIG. Regular or Medium Feet - buy 1/2 SIZE DOWN. Small Feet - buy 1/2 Size DOWN. Wide Feet - buy your REGULAR size. Users who hike long distances, use thick socks, or are new to La Sportiva may consider an addition 1/2 up.
Durable abrasion resistant mesh upper provides protection while Nano Cell 2.0 structure provides maximum breathability
Gore-Tex Surround waterproofing offers enhanced breathability combined with shoe ventilation outlets to provide a comfortable, snug fitting, and stable hiker
Vibram XS Trek with Impact Brake System sole provides traction and grip