Reversible EcoStretch Beanie. Reversible hat, two designs in one! Comfortable and light hat for fresh weather conditions. This hat is made of recycled materials and the result is a highly stretchable hat with sun protection against UV radiation. Reversible and comfortable hat with minimized seams. Ideal as a base layer for protection against the cold during outdoor activities like trail running, hiking, trekking, bouldering and climbing. Designed for adults.