It's time to wear these bad boys and live your life as a bear in the woods. 
These US cold weather overalls were originally part of the US Extended Cold Weather Clothing System (ECWCS). When worn on their own, they give a resemblance to a bear, hence the nickname "bear suit". 

These overalls are really warm and although they are meant to be worn under your pants, I think they look better when visible.
These are made of 100% polyester and will keep you warm for these awaiting cold months. 

Each side has a zipper that stretches from the ankle to the waist, as well as a crotch zipper. 
Each pair also comes with suspenders that can be un-clipped from the front for easy removal. 

Since these were originally made to be worn under your clothes, they will run a bit small in size. If you wish to have more room to move around in, I would recommend ordering one size up. 
The model in the photo is 5'8" weighs 145 pounds and is wearing a size small-long while wearing normal pants underneath.