Terramar Cloud Nine 4-Way Stretch Brushed Tight 86% Polyester/14% Spandex Imported Features climasense carbon thermoregulation technology: fast wicking and drying Midweight warmth (2.0) makes cloud Nine extremely versatile UPF Rating 25+ Functional thumbholes and all flat seam construction Ultra-soft Brushed surface Traps air and allows for increased airflow/breathability