All of our Bottle Hats are made from Repreve brand recycled materials. Repreve transforms recycled plastic water bottles into a soft, warm material. This process embeds properties such as adaptive warming and cooling, plus water repellency right at fiber level. These eco-friendly hats are great for winter or fall, can be used to layer and great on their own. Our Unisex Bottle Hats and gloves come in black, grey, green, and are one sits fits most.