Questions? Leave a comment below! From freefly: The Bamboo Shade Long Sleeve II is the second generation of this women’s style, now with an updated and super dialed fit. Same indulgently soft and stretchy fabric. Same impressive 50+ UPF rating. Naturally odor-resistant, it’s perfectly suited for travel or an active lifestyle. It’s also temperature-regulating, so it’ll keep you that just-right temp when the forecast (or the airplane A.C.) throws you for a loop. The weight of the fabric has a really nice, flattering drape to it, and you’ll probably start to wonder why all clothes can’t just be made from this stuff. Material Description: Ultra-soft, stretch knit Material Contents: 68% Viscose from Bamboo / 29% Polyester / 3% Spandex Fabric Weight (GSM): 180