Go ahead, get sweaty. The Swiftly Tech collection, powered by seamless construction, is the ultimate gear for running and training. Worn once, pet free smoke free home. Perfect condition. A long-sleeve layer designed with running (and sweating) in mind. Lightweight fabric and seamless construction keep you moving freely. Mesh venting encourages airflow and keeps you cool. Thumbholes help keep your sleeves in place for easy layering. Tight fit, hip length.