Will be working in weather that is too hot for any of my suit jackets or sportcoats, but I do own an unstructured jacket that I bought from Uniqlo a few years ago. It kind of looks like this And it is a 3-roll-2. I usually wear it with a button down and chinos, sometimes jeans. I'm working in a business casual environment where I'm going to be wearing a shirt and trousers on most days, maybe a tie every now and then. Would the unstructured jacket be too casual?