Under armour heatgear armour long sleeve mens baselayer this under armour heat gear armour long sleeve baselayer features a compression fit and and flat lock seams to offer you a close fitted feel that does not chafe or irritate the skin but also offer a comfortable feel that allows freedom of movement designed with a round neck and long sleeves and benefits from having heatgear technology to promote a more cool dry feeling under armour branding completes the overall look baselaye