Nike Machomai Mid – Blue – Features and Benefits: Designed to maximize quickness, agility and maneuverability of today’s best fighters. Lightweight, breathable upper materials minimize moisture absorption. Nimble, flexible gum rubber outsole designed for control and traction in all ring conditions. Weight: 292 grams (high), 266 grams (mid) These boxing shoes run one size smaller. We advise you to buy one size bigger for your convenience.