Hardcore backpacking boots take an agile step forward with the St. Elias GTX. Although it's Vasque's lightest backpacking boot, the St. Elias is built to bomb. To begin, they combined traditional all-leather comfort and support with a cutting-edge, weight-optimized sole. And then it gets creative: the midsole incorporates a soft EVA bed which allows the sole to conform precisely to the irregularities of the trail. The result? Ridiculous traction and a feel (both out of the box and out on the trail), that's unlike anything that's come before. Gore-Tex GORE-TEX is the ultimate system for durable waterproofing and breathable comfort. Summit Last A hybrid last, the Summit uses the heel from the Arc Tempo with a straighter forepart. Widths Available in widths for a performance fit.