On 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 window, so you can check your splits with ease. Made with a series of recycled materials, and at least 70% recycled content, this product represents just one of our solutions to help end plastic waste.