Shirt: Dolce & Gabbana ~180€
Jeans: Dsquared ~320€
Belt: Yves Saint Laurent ~320€
Shoes: Nike Air Force High ~110€
So… as you can see this is a 930€ outfit. It’s not that difficult to find a white shirt like this.
The belt is YSL and I have never seen a similar one. Sorry.
Dsquared jeans are quite unique but I found a similar ones at Pull&Bear. It was less than 100€, the shirt would be 30€, e.g. at H&M or ZARA.
But be careful: A fitted white shirt makes you look fat if you aren’t well trained 😉