Marmot Women's Leah Henley Long Sleeve Tee Dri-release Wool 88% Polyester, 12% Wool 4.4 oz/ yd Imported Fresh Guard Finish for Odor Control Soft, Comfortable, Lightweight Performance Knit Fabric Ultraviolet Protection Factor (UPF) 30 Dri-Release for Permanent Moisture Wicking and Quick - Drying Properties Wool for Breathability and Natural Warmth