Merrell opti-wick fabric transfers moisture away from your skin and dries quickly to keep you comfortable. 97% polyester / 3% spandex. Merrell Ionic soft and stretchy fabric wicks moisture, dries quickly and offers everyday performance that feels great. 20+ UPF fabric. Merrell n.A.D.A. dye-free colorway option. Raglan sleeves. Merrell floral graphic.