Pack Merino Fleece Cap. The Pack Merino Fleece Cap is one of the starred products to be worn casually for outdoor activities at colder temperatures. Designed to provide the maximum comfort, it is light, adjustable and versatile. Pack it down to your pocket size at any time, and enjoy low-intensity activities thanks to its inner cotton sweatband and its hidden and practical ponytail hole. Able to adjust and cover or uncover the ears.