In addition to their appealing design and stylish look, the high quality materials and seamless workmanship make these earmuffs robust and durable. The extra soft foam air cushions and low contact pressure ensure the M-Series are extremely comfortable. Robust headband retains shape. Flexible and lightweight. Grip points for easy on-head adjustment. Smooth sliding size adjustment. Ribbed air cushions for cool comfort. Large cup with wide ear space. Soft foam cushions for increased comfort.