Under Armour Draft 2.0 Heat Gear Long Sleeve Top Heat Gear Technology - designed to keep you cool dry and light. Acting as second skin laye Odor Control - Prevents odor by stopping the growth of odor causing microbes. Reflective Technology - Making it suitable and safe to wear at night. ArmourStretch - improves mobility and accelerates dry time with lightweight fabrics built UPF 30+ - for protection from harmful sun rays whilst out running or exercising.