Description of Outdoor Research Transit Sun Hat When the hot, desert heat turns it up a notch, this breathable, UPF 50+, 100% cotton canvas hat will keep you cool. Mesh panels provide maximum ventilation and with a brim that floats, don’t worry about losing your hat into the depths when you take a spontaneous leap into a cool, refreshing pool. Features: Breathable, 100% cotton canvas; UPF 50+ TransAction™ headband for comfort and moisture management Foam-stiffened brim floats Mesh panels offer maximum ventilation External drawcord adjustment Removable chin cord with cord lock Avg. weight: 4.3 oz./122 g (size L)