Nike Mercurial Lite Xl by Nike. Save 2 Off!. $19.54. DESIGN: Low-Profile Construction provides protection while not distracting the athlete. BACKER: The Durable Low-Profile Shell is bonded to a dense foam backing for excellent impact diffusion and comfort against the skin. FIT: Anatomical left and right design is engineered and tested to fit the contour of the leg. SLEEVE: Nike Dri-FIT Fabric Sleeves are highly breathable and lightweight, designed to hold the guard secure against the shin.