Heat-retaining base layer for cold conditions. The performance waffle-knit fabric delivers excellent insulation and quick-dry properties. ArmourBlock® helps control the growth of odor-causing microbes. Armour® Stretch for improved mobility. 100% polyester. Imported. Sizes: M-2XL. Colors: Acadia, Black, White, Rifle Green, Heron, University Red.
suprisingly warm(tested in 8 degrees celsius with a tnf denali fleece on ),keeps you dry and comfortable.a bit loose(i normally wear a medium but i think that a small would be ok).it is also made of recycled polyester(from platic bottles!)overall a very nice product from ua