All Manufactory styles are made to the same sizes specifications. A Medium is a Medium throughout our range of garments.
However – the fitting of each style is based on the fashion and performance demands for each garment. Each style we create is specific to a sport (purpose) or trend (fashion).
Here is the difference:
Sizing
“I am a size Medium T-shirt, therefore I must be a size Medium BASE Layer”
Fitting
“My T-shirt fits is perfect – casual and slim just like other fashion T-shirts. My BASE layer is really tight – but it’s made for compression and needs to be”