The Quest 4 GTX boots by Salomon are designed for long expeditions and tough conditions. The chassis has been updated to target sensitive articulations and wrap the foot for extra support. The ADV-C 4D chassis guides the foot, targeting sensitive articulations, even on the roughest terrain. Inspired by trail running expertise, this backpacking shoe respects the natural flexion of the foot for a smooth ride that flows from step to step. The ADV-C 4D chassis also provides extra support around the heel and helps reduce muscle fatigue, especially with a heavy backpack. They feature regular lace-up closure, gore-tex, 4D advancedchassis, a molded ortholite sockliner, a textile lining, and nubuck leather. The all-terrain contagrip is built for a wide variety of surfaces, delivering durability and confidence on wet, dry, hard, or loose surfaces. The tongue is connected to the upper on both sides, preventing debris from entering the shoe, and keeping the tongue centered. They have soft and protective cushioning that doesn’t sacrifice on energy return and response with a drop value of 12 mm. The weight per unit is 655 g.