Interval Training Shirt (Light Grey)Why It Made The List New York based Ten Thousand are fast establishing themselves as a standout fitness brand, marrying an obsessive focus on technical performance with an achingly cool approach to styling. Deeply rooted in CrossFit, Hyrox, and endurance racing, their gear is developed with elite athletes for peak performance across a range of disciplines. The Interval shirt is their most versatile piece yetfeaturing lightweight, quick drying fabric,