The Screw Vulc Mid x Sour Solution takes etnies’ retro “Screw” mid-top and gives it a Sour Solution makeover. Unlike the Santa Cruz version’s flashy art, the Sour edition showcases a more understated, witty design approach with subtle graphics and a playful pattern chosen by Sour’s creative team. It’s built on a single-wrapped vulcanized outsole for great flex and carries features like a deconstructed upper and Geo-Hex tread.