There s just no harder working choice than Carhartt for a rugged, ultraversatile gaiter that outdoes ordinary gaiters. Designed for breathability, this comfortable gaiter features a double layer pocket at the nose and mouth to accommodate an optional filter. An adjustable locking drawcord in the back helps ensure a customized fit.,95/5 cotton/spandex,100% cotton lining for filter pocket,Double layer 4" x 4" filter pocket at the nose and mouth (filter not included),Fits PM 2.5 filter (not included),Binding at the top and bottom hem,Carhartt logo at the lower left hem,Adjustable locking drawcord in back,Ideal for outdoor or indoor use,Machine washable,Non-returnable