Published by at 25/07/2026 Brand New with tags in retail packaging. Under Armour Women's Base 1.0 Crew Shirt. Color is Black. Use the drop down menu above to choose from available sizes. Fast Free Shipping, 60 Day Returns, Trusted Seller. Built for higher activity levels in less intense cold, this 1.0 base layer shirt offers ultra-lightweight comfort, four-way stretch, and the wicking and quick-drying comfort of the Signature Moisture Transport System. Signature Moisture Transport System wicks away body moistureFour-way stretch construction offers maximum mobilityRaglan sleeves allow improved mobilityThumbholes keep sleeves secure and help seal in body heatNext-to-skin fit without a tight squeezeAnti-odor technology prevents the growth of odor-causing microbesSmooth, chafe-free flatlock seam constructionBase layer weight: LightweightLong sleevesLength: 26-1/2" (based on size medium)Fabric: 94% polyester, 6% elastaneCare: Machine wash, tumble dry