Inspired by the classic work shirts of the 1930s, Freewheelers 'Birner' Mechanic Shirt is the perfect piece for year-round layering. Cut from a 100% cotton, this lightweight 8.5 oz. denim has been woven on an old-fashioned power loom, with a slub yarn, indigo dyed warp and natural-coloured slub yarn weft, this fabric will fade beautifully over time. Two asymmetrical chest pockets have been added, a hallmark of the period it was inspired by, and a buttoned chin strap adds nice detail to the collar. Featuring a Union Made tag on the inner placket and chain stitch run off on the hem, this shirt has all the period correct details we know and love.