SUMMER COOL WITH BIOM® NATURAL MOTION • Feel fresh all summer in the new ECCO GOLF BIOM® C4, which blends breathable comfort with innovative performance and a contemporary, sneaker-style aesthetic. Some of ECCO's most advanced technologies are used in the next generation of ECCO's BIOM® COOL PRO. The updated BIOM® fit encourages natural movement while the TPU posts on the outside add stability.