S (fits waists 28-30); M (fits waists 32-34); L (fits waists 36-38); XL (fits waists 40-42).
28 1/2" inseam.
Originally developed in the early 1900s, the double-layer fabric of this pant traps heat, making it ideal for layering. In fact, this fabric was worn by the first Everest expedition to reach the summit.
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