Carhartt WIP Oltera Ear Guard Cap Carhartt WIP Olten Ear Guard Cap Black Black Outsiders Store UK Carhartt WIP HD Olten Parka (Duck Green) HHV Carhartt WIP Olten Ear Guard Cap Black Black Outsiders Store UK Carhartt WIP OLTEN Blouson Bomber plant smoke green olive Carhartt WIP Oltera Ear Guard Cap Black BSTN Store. Another hunting adjacent style from Carhartt, the Olten Ear Guard Cap is a classically styled ear flapped cap, produced in durable nylon twill and featuring a deep pile sherpa fleece lining in the key areas. Finished with cryptic Carhartt embroidery at the front. 100% nylon twill Sherpa fleece lined ear flaps Rigid brim Carhartt embroidery at front One size fits most