


How not to look bad in a shirt?
Hello, I am in desperate need of buying a shirt. I see many people in shirts on the street daily and they look great, even the younger fellas in the "vintage" relaxed shirts. I thought it's going to be an easy task to find a well fitted shirt.
I've gotten myself a slim fit shirt in size 39 EU (15.5 in). The neck is perfect, the sleeves are good width wise (getting a smaller size would hurt my arms when bending).
So now the point of this post - why do I look like that? Is it possible to make this shirt less "puffy"? I tried tucking it in the best I can, but that's all I'm able to do. How do other folks' shirts fit so good? Thank you for all the advice.
PS: Please do not focus on the pants and the belt - it's all I got with me right now.
PS2: I replaced the photo background to solid color with AI for better visibility and contrast, hope I won't get eaten alive for it