Many holiday socks list cotton and polyester as primary fabrics, with spandex, nylon, acrylic, and recycled polyester also commonly used.
Many holiday socks include double-layer or double-lined construction, faux shearling or brushed linings, and thermal-grade or heat-retainer constructions for added warmth.
Several styles include non-skid bottoms or nonslip grippers on the sole to help prevent slipping indoors.
Listings use fabric-weight labels such as Lightweight, Midweight and Year Round, and some items show a thermal grade (for example, a 3.0 thermal grade) to indicate extra warmth.
Kids' holiday socks are often ankle height, use lighter knit fabrics with nonslip grippers and embroidered details, and are sold in smaller size ranges; adult options emphasize crew or boot heights, thicker double-lined or thermal constructions, and broader size ranges.