Weighing in at over 500 GSM this is our heaviest hoodie to date. The fleece is custom knit, dyed, brushed and pre shrunk to our specifications. The pullover style is the original hoodie - designed in the 1930's and intended for laborers and warehouse workers that had to endure cold temperatures during East Coast winters. It was not designed as workout gear or sports recovery but was eventually adopted for this use as well. This hoodie takes no prisoners and weighs in at over 2.5lbs and will have no issues keeping you warm and accomplishing the task it was originally designed for. Every aspect of this hoodie, from the sewing and fabric to the labels and trim, is Made In The USA.