Sleek and fresh, the Women's Sol Cool Ultimate Hoody is a heat-defying top for adventuring women. Mesh under the arms and on the sides lets in the breeze, and the thumb slots and crossover tie hood fulfill the need for thorough coverage. Cinch up the side ties for more movement or style. Two vents on the back of the hood chill your neck, and one side seam zipped security pocket keeps your mobile phone or other valuables handy.ExOfficio's Sol Cool Icefil knit fabric is embedded with xylitol, derived from white birch trees. When in contact with sweat, xylitol can decrease skin temperature by up to five degrees, and the Icefil fabric wicks the moisture to the garment's surface. The same Icefil treatment blocks UV rays for a UPF 50 rating, giving you more time to enjoy the sun.