Made in the USA - High on the list of recommendations for  your expedition is this excellent moisture wicking, breathable,  midweight thermal top, made of technologically-advanced fabrics. 
They have these Special Features:
- Made of bi-Component 100% polyester knit
- A brushed inner surface for warmth
- A mesh outer surface to speed moisture evaporation
- In addition to insulating you, the composite effect of the  bi-component fabric is that of moving moisture away from your skin to  the outer mesh poly fabric where it quickly evaporates
- Quick-drying and warm in winter stop and go activities
- Comes in Men's and Ladies' sizes
- Color: Black 
- Made in the USA