I seem to have accumulated a bunch of links on gender, trans-ness, embodiment and fitness/movement:

GFW Clothing: Overcoming Barriers to Trans and Queer fitness (brief promotional mention of GFW underwear, as the author's one of their models)

NY Times: Fitness for Bodies That Don’t Fit the Mainstream

My fight to be a man: the story of a life-changing boxing match: Thomas Page McBee on transitioning, sexuality and the fight that altered his life