KENYON Women's Youth Outlast Bi-Component Thermal Bottom 100% Polyester face / 80% Acrylic Outlast / 20% Micro-Acrylic back Made in US Bottoms have covered elastic waistand and self cuffs at the ankle Made in USA Temperature regulating Not too hot, not too cold -- just right Pill resistant polyester mesh face is backed with a cozy Outlast/micro acrylic brushed surface for next-to-skin softness Can be used as tactical apparel Bottoms have covered elastic waistband and self cuffs at the ankle