Put your Class Pass on pause and head over Trinity Boxing Club for a workout that the owner claims, "...will give you nerves of steel, to go along with those abs of..." you know, steel. Gritty, grungy, and all- around authentic, the club's open air training area offers passersby a view into the ring and celebrity sighting opportunities. The antique boxing posters and 40s and 50s ephemera pay tribute to the history of the sport, and set the stage for an ideal post-workout Insta-post.