Common body fabrics include polyester, acrylic and other synthetic knits. Trim and stretch components often use spandex, nylon and elastic. Grip or non‑slip details may be made from silicone, rubber or PVC (used for dots or pads, not as the main sock fabric).
Some styles include non‑skid bottoms or gripper dots made from PVC, silicone or rubber to add traction on smooth floors and prevent slipping inside shoes.
Care varies by construction: many liners and knit styles list machine wash and tumble dry, while a few heavy fleece or specialty items may not provide explicit washing or drying instructions.
Size options include one‑size‑fits‑most listings (commonly covering US women’s sizes 5–11) and explicit ranges like S/M (5–7) and L/XL (8–10).
No‑show footies use ultra‑low, single‑layer liner construction and a low profile so they sit below the shoe line. Some also include light padding or a contrast heel stripe to improve fit and prevent slipping while remaining hidden.
