La Sportiva tweaked the designs of proven technology from years past to produce the Boulder X. Additional padding underfoot for long approaches and uber sticky rubber add deluxe comfort and performance. The Vibram® Idro-Grip compound stays sticky on every type of rock even when wet. The all leather uppers and sticky rubber toe rands offer durable protection. Ideal protection and performance built for the rigors and abuse of the mountains. Ideal Terrain: approach and hiking on technical terrain requiring friction footwork. Impact Brake System (I.B.S.) A proprietary technology in outsole design where the lugs of the soles are oriented in opposing slanted directions. This opposition increases braking power by an average of 20% and decreases impact forces by an average of 20%.
Vibram Idro-grip approach compound is the stickiest approach compound on the market
High cushion LaSpEVA layer is above the 2mm polypropylene insole to cushion the foot on long approaches
Mythos lacing system for a highly adaptable fit