DLY Longsleeve Running Shirt (Shadowcast)Why It Made the List Ciele's high tech, minimalist take on an unavoidable staple for UK runners; the long sleeve running shirt. They don't just look cool, they incorporate four way stretch COOLmatic PLUS fabric, making them as breathable as running shirts come. They're UPF +50 rated, use flatlock stitching to reduce chafing and feature reflective detailing for night run visibility. They even use water based, breathable printed graphics to prevent