I'm 5ft 4in, 128lbs, 38/29/38 and we bought these in Black, Size: XL, and Duofold Women's Thermal Underwear in Black, Size: M (also available here at Revain: Moisture Wicking Midweight Women's Underwear). Duofold thermal shirt) for comparison. The composition of both materials is the same: 60% cotton and 40% polyester. For: 1. Boys sleeves are 4 inches longer (ideal for those with long arms); different cuffs see also Fig.2. The collar sits higher on boys, definitely more than a crew neck, while on women it is wider and lower, more like a boat neck when worn3. Females have barely noticeable vertical stripes and boys 4 are completely flat with no stripes. Boys shirts are 1 inch longer than women shirts. I just love these thermos, a basic cotton blend shirt I'm looking forward to. For a non bulky long sleeve shirt they are comfortable and warm, perfect for layering. or even alone with a vest in the fall and spring seasons. Even our slim young adult sons (all about 5ft 9in, 125lbs) fit the boy/teen size: XL and love these thermals. I hope this information helps you make a purchasing decision.
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