With tailored outfits, socks should usually relate to the trousers rather than the shoes. Navy, charcoal, brown and black are easy choices for business and formal clothing, while burgundy, green and patterned designs can add color when the rest of the outfit is simple. Avoid socks that are noticeably lighter than the trousers.
Mid-calf socks are the most versatile length for everyday wear. Knee-high socks give more coverage and prevent the leg from showing beneath tailored trousers, making them especially useful with business suits and formal clothing. No-show socks are for casual warm-weather outfits with loafers, sneakers and similar footwear.
Cotton works through much of the year, while finer cotton and Fil d’Ecosse have a smoother look with dress shoes and tailoring. Merino wool adds warmth in cooler weather, cotton-linen blends suit warmer conditions, and cashmere blends feel softer for relaxed autumn and winter outfits.
Plain and ribbed socks are the easiest to wear with tailored clothing. Stripes, Fair Isle, birdseye and other patterns work best when the trousers and the rest of the outfit are relatively simple.