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.