Our gridded Waffle Fleece styles bring the warmth and coziness of fleece combined with the air permeability needed to stay comfortable. The common problem with standard fleece is overheating due to excessive weight and warmth. Our gridded fleece provides insulating qualities while allowing moisture and air to escape to keep you from overheating. Kick standard flat fleece to the curb and never overheat again! As with the rest of our fabrics and styles, these are made from recycled plastic water bottles and built in the USA.