The Martha Light Sun Cap is made from ultra-light, recycled, stretch fabric in a slim-fitting minimal design for fast-paced days in the mountains, where packable headwear is called for. The soft, flexible material means it packs down to nothing inside a backpack. A stretch band at the back creates a secure fit and you can tuck your ponytail through it too. A supple, stretch mesh panel at the back and extra ventilation holes generate maximum airflow while you’re working hard. Light, active and effective ¬– just what you need!