Manufactured from new super-soft PVC foam. Responds to body heat by getting softer with use. The only foam specified by the U.S. Military. Optimal "recovery time" allows for deeper insertion, more secure fit, and less "backing out". Therma-Soft 30® provides an excellent seal for every user. CSA Class A(L). Colors may vary. NRR: 30dB.
Product Number: SP
Call 800-227-4255 to order.