Use Promo Codes to save $23 when you shop at Darn Tough. You need to log in to your existing account at darntough.com or create a new account of your own; then, to select a product, you can browse the darntough.com product page to select a product and add it to your cart. Occasionally, they will offer you discounted products up to 50%. Then, click Pay, select the corresponding available Coupons, and select your preferred payment method. Please note that each Darn Tough Coupon Codes has its own rules of use, if your order is eligible for darntough.com, it can be used.