The Moldex M2 Multi-Position earmuff features SoftCoat® covering that helps muffle transmitted noise and special grips molded into the ear cups for quick, easy fitting and alignment. Cup adjustment is infinitely variable, distributing pressure evenly. The muff provides NRR 26 (over the head) and NRR 24 (behind the head and under the chin). Sleek styling provides an attractive look.Moldex,, (800) 421-0668