There are 9 Renfro Socks coupons that include promo codes and free shipping deals for September 2018 for you to choose from. Our top coupon for today is a 30% Off coupon code. Just because your socks are hidden away under your pants doesn't mean you should compromise on style. At Renfro Socks they have an amazing selection of socks to choose from that are perfect for everything from business meetings to distance running.