T-shirt by HIIT, Activewear, but make it fashion, High neck, Long sleeves, Contrast stitching, Cropped cut, Slim fit, A narrow cut to the sleeves and chest. Look stylish without breaking a sweat with HIIT's drop of activewear. The label's monochrome palette plays out across a streetwear-inspired range of tops, leggings and sports bras all kitted out with breathable mesh panels and handy zip pockets.