Fast Running Half-Zip Long-Sleeve T-shirtOn those in between days when it's not cold enough for a jacket but not warm enough for short sleeves, the right half zip is essential. This light, breathable adidas top is the only one you'll want to reach for. Moisture absorbing AEROREADY will help keep you dry, and it's simply a fact that every running long sleeve should have thumbholes. They keep your sleeves secure, hands warm and run fun. This half zip takes it one step further with a watch