It’s been a while since i made a pic in which muscles are the main focus x3. Let’s just say my latest collab, got the better of me in getting back to draw them again XP and my Pegasus oc as an anthro in my own style X3.
 
As for his choice in clothing, Marker Pace, being the competitive flying/speedster he is, and usually working out to be built for speed and race at any time, he usually wears horseshoes, his racing goggles and wristbands, like his non-anthro version does, and some spandex shorts, to be aerodynamic and have less drag as possible. Plus, if you got the looks, why hide them under a pesky shirt? XP  
He’s usually hot-blooded, sly, competitive and a bit of a flirty tease, either by showing off his figure or when he sees some eye candy >x3, though he’s more of a reserved humble type of pony under normal circumstances. you wanna fly by his side? Then try to keep up the pace ;)
 
I really like how this pic came out, since i never made a pic with bara muscles being the main focus before. Feel free to give any constructive criticism for future references if you’d like, as we all deep down are constantly learning ^^.