This same forward-looking concept of mutation and evolution also infuses the men's and women’s Engineered Sleeve Composite Jacket. Instead of using a single fabric to form the outerwear layer, the unlined jacket takes into account the multifaceted needs of the resolute runner and incorporates the multiple materials required to meet them. The body of the garment is constructed of a composite Storm-FIT that provides weather protection, whereas the sleeves and neck are formed from an engineered knit that allows for mobility and adapts to the arm in motion. A stand collar and sealed seams further combat the elements, while a key/coin pocket and laser-cut, concealed-zip hand pockets anticipate the runner’s on-the-go needs. Moreover, laser-perforated underarm ventilation facilitates cooling while a laser-cut Gyakusou logo placed vertically along the back acts as an exhaust system, expelling body heat.