Castore is dedicated to a culture of marginal gains; seeking to improve the smallest of details that others neglect, which combined give our athletes an edge in the situations when the smallest details are what make the difference. We have 480 laser cut holes in every tee, strategically mapping areas of high perspiration generation and providing superior ventilation during training. ​ . . . . . . #premiumsportswear #olympics #innovation #athlete #technology #mensheath