Fitness is our passion. Ok, maybe not our passion so much as a necessary evil if we want to get up and down the mountain without losing our breakfast. Sometimes that means training and when we train, we strive to have the least amount of fabric on our bodies as possible. Enter the Passus Lightweight Ankle Sock. The same weight and construction as our popular Solum Crew Sock, the Passus is perfect for your next jog, run or hike.