Why we made this Crisp air, don't care. We designed this jacket with strategically placed fabrics to keep us comfortable during morning warm-ups and evening cool-downs. Panels of breathable Mesh and lightweight Swift fabric help keep the breezes flowing so we don't overheat when we're working out after hours. Key features Two-way stretch Swift fabric in the body is treated with DWR (Durable Water Repellant) to be wind and water-resistant Four-way stretch Swift fabric in the arms wicks moisture strategically placed Mesh under the arms helps keep you cool. Stow your essentials in the two secure zipper pockets at the hip window in the left pocket helps keep your cords under control thumbholes in the stretchy Luxtreme cuffs help keep your sleeves in place. Reflective details on the back help keep you visible when you're up before the sun. Tech specs designed for: run fabric(s): Swift, Mesh, Luxtreme properties: moisture wicking, breathable, lightweight, reflective fit: loose length: hip EUC....MISSING TAG SIZE 10