The Aeros Ultralight Pillow is a perfect mix of weight, size and comfort. The result is a comfortable 20 denier pillow that can be packed in a tiny and practical cover. Whether in the airplane or in the mountains, the Ultralight Pillow is the perfect travel companion on the road. Curved internal chambers create contours that perfectly fit the head. - The recess on the underside allows the head to lie centrally on the pillow, whether you sleep on your side or back.