It’s SO cold outside

So I live in the mountains right, like LITEARLLY every time I look at the horizon I just see massive mountains. And it’s really hard to stay warm outside and not look/feel like if I was 300 pounds. Also I’m trying to be scene so a big jacket doesn’t really help the case. My question is how do alternative people stay warm outside (more than a sweatshirt). I know about leather jackets and I think they are cool on everyone but me, since they remind me of my dad and I am NOT trying to be like him. Please comment some ideas on how to stay warm cuz 99% of the time I can barely type, and old ppl keep on telling me to wear a jacket.