I'm wearing it right now: black fingerless gloves, my black ring (it's a bit of a mismatch in size tho--on my finger, it's loose enough that it'd fall off if not for my gloves keeping it in; if I put it on top of my glove, it's a bit of a tight fit, almost impossible to get off and can even somewhat restrict circulation), a black warmup-tshirt (dunno what it's called, it's the type of undershirt you'd wear when doing track underneath of your official clothes to help stay warm, it's a sportsy thing that is designed to extract sweat and also keep you warm so it's useful in both summer and winter), which in this case happens to be long enough to act almost like a skirt, and short short black warmup pants (dunno what it's called, it's the pants-equivalent of the undershirt, sportsy track wear that you wear underneath your track clothes to help stay warm; they are sometimes mistaken for being boxers even tho I wear them as shorts with me having underwear underneath of them).
Were I to wear another layer on top of that, it technically wouldn't be ALL black, unless I were to go with black sweatpants and a black hoodie (which I do own, and still love!). It'd be mostly black or close-to-black, but my warmup-jacket (dunno what it's called, it's a sportsy jacket that you'd wear over your track clothes while warming up) does have red patches on it over the torso area. I'd also be wearing warmup pants (dunno what it's called, it's a sportsy pants that you'd wear over your track clothes while warming up), the pants equivalent.
I started wearing them during high school once I started doing track and cross-country, but found that they were quite convenient to wear at all times. They're pretty unisex, so you can wear them without broadcasting a gender, they tend to be fairly tight in the areas I like to keep tight, but loose in the areas I want to be loose, keeping me soft and comfortable yet also allowing me to disguise my features as to be more androgynous. Plus, you can add/subtract the clothing at will depending on needs. Too cold? Throw on the pants or the jacket. Still cold? Add the other. Too hot? Remove one. Still too hot? Remove the other.
Also, the warmup pants have deep pockets, and the warmup jacket has zipper-sealed deep pockets, too. (Not to mention, the warmup jacket has a zipper down the middle so you can split it in half to air things up and more easily remove; the warmup pants have zippers on the leggings, which while not running all the way up, allow you to air things up and in theory, take them off while wearing shoes.)
Before I discovered this style of clothing, I wore exclusively sweatpants and then 2-3 layers of: t-shirt, sweatshirt, hoodie. All black. It accomplished similar. Hoodie for protection against the rain, zipper down the middle for easy removal, hoodie kept me warm, could shed layers if needed if I got too warm, but often, surprisingly, wasn't because my tolerance to heat is naturally high due to me being a stick.
Fun fact, my original character, superhero name Red Hood Rider, actually takes inspiration from both halves of this. Her default form has the hoodie, but one of her powerup-forms has the warmup jacket and warmup shorts. The design of her hoodie is actually based on my memory of my first hoodie, which I had when I was practicing soccer (since for the first 14ish years of my life I played soccer every year and in fact my first job was as a soccer referee).
I also was bullied on my first soccer team, teased with 'Little Red Riding Hood', but me being autistic, I didn't understand that I was being bullied because I didn't actually understand that the nickname was meant to be malicious. However, I might've known on at least some level, since I did talk to my mom about it, who
did
recognize the bullying for being what it was and next year transferred me to a much better team. (Sadly, while the team I moved to was better, it also fell apart sooner and when it did, that was the end of me playing soccer since I couldn't get onto another team.)
But later in my life, I now would take pride in a name like that. They meant it as an insult, but it'd be a compliment to me. (Sadly, I believe my mom either sold or gave away that original hoodie when I had my growth spurt, since it was not designed for someone who was 6'2". I could still fit in it as a stick, but it'd be exposing my belly due to being too short. Which, in adulthood, I wouldn't mind showing off some skin, but as a child who got cold, my mom likely recognized I needed something more suitable for my size.)
Oh and floods are really cool. "Stocker Lake" is what we named the fields when they flooded.
I almost forgot this btw: I have black hairties, too! While I may not need them, they're part of my outfit.
Also, my digital wristwatches have always had black as their main or only color.