A decent fake bought from taobao seller for 17 USD.
It looks good from a distance. The patterns look correct on the iconic chequered design. These fakes have a slightly different shape collar. A bit bigger than the real shirts but not hugely noticible.
The badge seems OK.
The material is OK, the sleeves material also quite like the real thing.
No tag on the bottom right.
Sleeves got the detail material.
The stitching is a give away that its not the genuine, its rough around the edges and the shape of the shirt is a bit loose nearer the bottom. The shirt is OK to wear and to look at. If you don't want to spend 100 USD for the real thing, that's if any is available. This is a good alternative.