Amazon has the 6-Pairs Amazon Essentials Men's Performance Cotton Moisture Control Socks (Athletic Crew, Grey / White, Sizes 8 - 12) on sale for $8.39 - 25% off coupon (check "Save an extra" box, eligible on first S&S order for this product) - 5% off with Subscribe & Save (can cancel anytime) = $5.87 with free shipping on $35+ or with Prime. Note: Some users may have a 30% coupon.