Where to shop for jackets 36 year old man?

[Seeyounearertime]

I'm trying to find a decent jacket for year round wear. I've been wearing a Levi denim or grey camel twill blazer for a while but they're not waterproof or warm and i usually wear a hoody underneath. I'd like maybe a decent leather jacket or anything with a bit more style to it. Budget would preferably under £150 but if its gorgeous i'd stretch to a little more.

I don't want to look like i'm trying to be a 21yo but i don't want to look like "Mr Middle Age" either, if that makes any sense at all?

If it helps I'm 6ft tall, 12st and quite scrawny i guess i'd say. i usually wear simple Tshirts of varying colour and light blue or grey straight jeans with either walking boots, Hummels, Converse or running trainers.