UPF 50+ Sun Protection: Material used has been treated to provide an Ultraviolet Protection Factor (UPF) of 50, limiting the transmission of ultraviolet rays to help protect your skin from sun damage. Wickwork Technology: Moisture-wicking fabric draws perspiration away from the skin, helping to keep you comfortable while working. ReBOTL Material: Products with ReBOTL material contain at least 50% recycled PET (recycled polyethylene terephthalate, the stuff plastic bottles are made of) excepting trace materials. Raglan sleeves; Thumb holes for easy layering Three-piece hood; Tagless neck label