To install:

First choose the hat you want to replace, then go into the corresponding folder,

Choose which Hat you wish to use, and again, go into the folder, 

Now copy the'models' and the 'material' folder into:

'C:\Program Files\Steam\steamapps\*YOUR USER NAME*\team fortress 2\tf'


Credits:

Modeled, skinned and compiled by *Squint911* 'squint911@hotmail.co.uk'