The Crispi Ridge 3-Quarter Crew Lightweight Sock is engineered to maximize temperature regulation and eliminate hot spots inside technical mountain footwear. Knitted with a premium blend of moisture-wicking Merino wool and high-durability nylon, this sock naturally resists odor while rapidly pulling sweat away from the skin. The lightweight construction features targeted underfoot cushioning to absorb trail impact without adding bulk or altering the precise fit of your boots. A completely flat-knit seamless toe box eliminates abrasive friction points that lead to blisters during demanding backcountry ascents. Finished with an adaptive arch support band and an anatomical Y-heel pocket, the sock remains securely locked in place to prevent bunching or slipping under heavy pack loads. Crispi Ridge 3-Quarter Crew Lightweight Sock Brown 4578-Brown