Hard Yakka Jean type Moleskins or Relaxed cut Moleskins or perhaps the Carhartt Premium 12oz. Super tough work pant or double fronted

 work pants, we have you covered in these freezing working conditions, where you don't want the sound of a Nylon overpant,  but

want warm pants that look just like jeans.  We sell many of these pants including in this area to workings in Thredbo

and Perisher workers, so we can pretty much guarantee that your guy will be warm.  Why don't you give them a try,

well worth the money, strong, durable and comfortable.