Perhaps because the second _i_ is twisted by a fold in the fabric of the material on which it is printed.
Similar to various sports and retro scripts, including American Pop https://www.myfonts.com/fonts/fontmesa/american-pop/ Home Run Script

https://www.myfonts.com/fonts/doyald-young/home-run/
Don

Have not found an exact match.
A little closer: Pivo

http://www.myfonts.com/fonts/storm/pivo/
In the ballpark: Number Five Smooth

http://www.myfonts.com/fonts/laura-worthington/number-five/
Don

Also in the ballpark: Monotype Script

http://www.myfonts.com/fonts/mti/script-mt/
Don

I just noticed the bottom half of the Adidas logo in the image. Here is a full view of an Adidas product with this script.

Based on past experience with clothing companies, I believe that this is likely bespoke lettering.
Don