wztee Dog Bone Shape Memory Foam Pillow II Car Neck Pillow Grey Size:11*8*3 inch All season can use,smooth side can use for summer that feel cool and other side use for winter that feel warm Cccasion:car,home,office Able to absorbed by the body sweat quickly Supporting the cervical spine and neck lines fit,cervical zero pressure that through self-adjusting back to normal cervical curvature