Thigh-high boots, known also as thigh-length boots or simply thigh boots, are boots that extend above the knees. Other synonyms include over-the-knee boots (OTK boots), and especially when cuffed, pirate boots. Lengths vary from reaching just over the knee to reaching almost to the crotch (referred to as crotch boots). Like all boots, thigh boots are made of different materials ranging from various leathers, to various synthetic materials (vinyl, polyurethane, or latex), to various fabrics (silk, polyester microfiber). Many are constructed with zippers for ease of entry, but some are constructed as pull-on boots. Heel heights vary, but the majority are sold either as flats or with heels greater than three inches (7.5 cm). Heel styles vary from metal spikes to chunky. Like other boots, they can also have platform soles. Thigh boots are considered by many to be erotic or kinky. They are used as fetish clothing in boot fetishism and shoe fetishism.
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