Sew long underwear - PEM BB textiles.wood.long

This is a badge bit (BB) that is part of the PEM curriculum.  Completing this BB is part of getting the wood badge in Textiles.

Now that we're getting a bit more advanced in our textiles experiences, let's make clothes starting with the natural raw material.  

Minimum requirements:
 - Start with the prepared fiber and turn it into fabric
 - Sew long underwear
     - Can be a one-piece "union suit" or two pieces
 - Intended to keep you warm in winter

Provide proof of the following as pictures or video (<2 min):
 - Processing the material into fabric
 - Sewing the long underwear
 - Somebody wearing the finished item showing that it is a reasonable fit