Under Armour Microthread Edge Zip Top - Fitted: Next-to-skin without the squeeze. - UA Siro uses a unique construction to give you greater stretch & recovery, ultra-soft feel & more breathable performance - 4-way stretch construction moves better in every direction - Material wicks sweat & dries really fast - Anti-odor technology prevents the growth of odor-causing microbes - Princess seams create a slimmer, more streamlined silhouette - Generous ¼ zip front with mock collar - Raglan sleeves - Dropped hem for superior back coverage - Piping details at hem & cuffs - Jacquard panels - 93% Polyester/7% Elastane