The perfect spring jacket you ask? It’s simple, it’s the military utility jacket. They are incredible comfortable to wear as they are usually made from cotton. That also means that they are not as warm, but they will keep you safe from the evening chill.
I’d personally use it for pretty much anything – the most common being skinny distressed jeans and a t-shirt. But honestly, there is a great variety of stylings that it would fit with! Just that it works this great with a pair of suit trousers is just a testament to the versatility of this kind of jacket. Further I feel that it is a very pleasant alternative to the bomber jacket.