5.6 oz./yd² (US), 9.3 oz./L yd (CA), 92/8 polyester/elastane; MATTR (Materials, Technology & Research) is the performance fabric designed for the highest level of comfort no matter the climate condition; Moisture-wicking performance; UPF 40+ protection; Four-way stretch fabric for increased mobility; Flat Knit Collar; Three-button placket;