There is no absolutely "most suitable" sock. The core principle is to choose materials and functions based on your scenario and foot condition - only by matching your needs can your feet stay more comfortable.
For daily commuting/sedentary people: Prioritizecotton-blend socks (containing 70%-85% cotton + spandex). They absorb moisture, are breathable, and fit feet softly. Avoid 100% cotton socks (they tend to stay damp and cold after absorbing sweat). No-show socks or crew socks can reduce friction inside shoes.
For sports/fitness/outdoor hiking**: Choose **wool socks (e.g., merino wool)** or **functional synthetic fiber socks**. The former absorbs moisture, wicks sweat, retains warmth, and inhibits bacteria; the latter (e.g., Coolmax fabric) dries quickly and is wear-resistant. Styles with arch support and thickened soles can buffer pressure.
For winter warmth/low-temperature environments**: Opt for **thickened wool socks or wool-blend socks**. The air pockets between the fibers lock in heat. When pairing with snow boots or Martin boots, avoid overly tight styles to prevent poor blood circulation.
For people with excessive foot sweat/easy foot odor**: Select **socks with antibacterial fibers** (e.g., silver-ion antibacterial, bamboo fiber) or natural wool socks, as they reduce bacterial growth. Meanwhile, prioritize mesh breathable styles to speed up air circulation.
For people with diabetes/sensitive feet**: Choose **seamless, loose-cuff pure cotton or combed cotton socks**. Avoid overly tight cuffs that constrict the ankles; the material should be soft and non-irritating to prevent skin damage from friction.