Under armour fly by ladies tank this under armour fly by tank is crafted with heatgear technology to assist in keeping you cool and dry whilst wearing styled with a scooped neck and no sleeves and flat lock seams to allow for a comfortable feel that does not irritate and chafe its bold colouring allows you to be seen in poor light weather conditions under armour branding completes the look vest sleeveless scooped neck lightweight heatgear bold colour mesh detail