Adidas Men's International Soccer Mexico V-Neck Jersey, Green. This appears to be an authentic Adidas Mexico national team jersey from the mid-2010s era, likely the 2016–2017 home jersey with product code AC2723. The details line up well with genuine production:

Correct Adidas embroidery style and spacing
Proper “climacool” heat-pressed neck print
Official FMF crest embroidery looks clean and proportionate
Product tag shows:

“FMF H JSY”
Color: Green/Red/White
Code: AC2723

Thailand manufacturing is consistent with authentic Adidas production
Side stripes and V-neck construction match known retail versions

A few things that support authenticity from your photos:

The stitching around the crest is neat and evenly dense
The Adidas logo embroidery is sharp without loose threading
The neck print alignment and font spacing look correct
Hangtags and licensing card appear consistent with Adidas retail packaging from that period

The only thing I’d still check is the small internal wash/care tag inside the side seam. Genuine Adidas jerseys usually include:

A longer multilingual care tag
An article number matching AC2723
A QR/code block or production identifiers

Overall, based on these images alone, it looks legitimate rather than a low-quality replica.

Adidas Men's International Soccer Mexico V-Neck Jersey, Green/White