Keep your boys locked and ready for action in the Under Armour HeatGear Armour Sleeveless. Made with the signature HeatGear fabric for added comfort and sweat-wicking support, this base layer keeps the fun going no matter what. The anti-odor technology keeps your boys fresh for longer durations, so playtime doesn't get over too quickly. Four-way stretch construction moves better in every direction. 90% polyester/10% elastane. Imported. * Machine wash cold with like colors. Use only non-chlorine bleach when needed. Do not iron. Do not use softeners. Do not dry clean.