MSA SOR10012 EXC Cap Mounted Earmuff Helmet Ear Defenders (SNR 26) from Lawson HIS
Honeywell Howard Leight VS110H VeriShield Helmet Earmuff - SNR 27 dB
Industrial Forestry Safety Helmet–Hearing and Face Protection System, Forestry Professional Helmet with Visor Combo Set, Removable Ear Muffs and Visors by CUKUGUARD : Amazon.co.uk: DIY & Tools