PRIMUS FLOW / PRIMUS FLOW (M) Men's Size: 40 Color: DARK SHADOW / Dark Shadow ¥26,400 Only tried on outdoors. Discounts are up to 10% off. Run while feeling connected to the earth, one step at a time. Introducing the latest model in the PRIMUS series, the PRIMUS FLOW. Designed to pursue speed and agility and maximize human potential, these running shoes let you experience a barefoot sensation like never before. With a lightweight design of only 150g and a 6mm thick sole (midsole 4mm + outsole 2mm), these shoes sharpen your awareness of every movement, truly allowing you to "feel" the ground. Main color: Black Stains, tears, odors, etc.: None Barefoot Vivo vivobarefoot ALTRA PRIMUS FLOW Light Zero Drop