A system for generating feedback on exercise technique, the system comprising - a sensor comprising a pressure sensitive surface configured to generate a pressure signal (Sp) as a function of pressure exerted on the pressure sensitive surface ; - a readout device configured to generate sensor data (Sd) based on the pressure signal (Sp); - a data processor configured to process the sensor data (Sd) to calculate a feedback value (Sx) comprising a coordinate (Xc, Yc) of a center of pressure (Pc) on the pressure sensitive surface ; - a color mapper configured to map the feedback value (Sx) onto a color map (Cx) to transform the feedback value into a color value (Sc); - a wearable feedback device ; characterized in that the system further comprises: - a color map selector configured to provide user customization of the color map (Cx), wherein the color map selector comprises a user interface configured to depict a representation (C 1) of the color map (Cx), wherein the representation comprises a surface profile picture of the pressure sensitive surface , wherein positions (X', Y') in the surface profile picture correspond to positions (X, Y) on the pressure sensitive surface , wherein the color map selector further comprises a slider control for adjusting a position of the color ranges on the color map representation (C 1); and - the wearable feedback device comprises a plurality of light sources configured to generate a variable color light output (Sf) based on the color value (Sc), wherein the light sources are in use arranged around a circumference of the user's wrist such that an exercising user wearing the wearable feedback device is able to receive visual feedback in their peripheral vision whilst looking ahead. - a sensor comprising a pressure sensitive surface configured to generate a pressure signal (Sp) as a function of pressure exerted on the pressure sensitive surface ; - a readout device configured to generate sensor data (Sd) based on the pressure signal (Sp); - a data processor configured to process the sensor data (Sd) to calculate a feedback value (Sx) comprising a coordinate (Xc, Yc) of a center of pressure (Pc) on the pressure sensitive surface ; - a color mapper configured to map the feedback value (Sx) onto a color map (Cx) to transform the feedback value into a color value (Sc); - a wearable feedback device ; - a color map selector configured to provide user customization of the color map (Cx), wherein the color map selector comprises a user interface configured to depict a representation (C 1) of the color map (Cx), wherein the representation comprises a surface profile picture of the pressure sensitive surface , wherein positions (X', Y') in the surface profile picture correspond to positions (X, Y) on the pressure sensitive surface , wherein the color map selector further comprises a slider control for adjusting a position of the color ranges on the color map representation (C 1); and - the wearable feedback device comprises a plurality of light sources configured to generate a variable color light output (Sf) based on the color value (Sc), wherein the light sources are in use arranged around a circumference of the user's wrist such that an exercising user wearing the wearable feedback device is able to receive visual feedback in their peripheral vision whilst looking ahead. <EOS>