REEBOK'S SIGNATURE PUMP TECHNOLOGY WITH A MODERN TWIST Straight from the archives, the Instapump Fury 94 sneaker brings our original Pump technology into the here and now. Its inflatable chamber can be adjusted using the button on the tongue to offer a supportive, customised fit, while Hexalite cushioning and a carbon fibre shank provide comfort. This futuristic design is fitted with a textile upper, cut-outs and features splashes of colour.