Men's microfiber fleece pajamas by Alexander Del Rossa are made from a special type of fleece fabric that is able to absorb water. Coral fleece pajamas, similar to our bathrobes, are water absorbant so that when you do sweat from within the pajamas that sweat will not be held inside and end up actually cooling you down. The beauty of coral fleece pajamas is they keep the warmth in and will absorb any body moisture you generate, thus keeping your body warm. Our men's fleece pajamas are made from a 15 oz fleece fabric that is neither too light nor too heavy. We think you'll find that our fleece pajamas for men will quickly become one of your favorite pajamas.