Pantyhose - (also called tights in the United Kingdom) are sheer, close-fitting leg wear, covering the body from the waist to the feet. Like stockings, knee and ankle-highs, pantyhose are usually made of nylon. Pantyhose are designed to:
Stockings - reach to the upper thigh sometimes needing a garter belt, unless specified as stay up.
Thigh High - usually stay up on their own without a garter belt. Most have silicone tops netted in material for reinforcement. Look for stay up when searching
Cuban Heel - a stocking with a heel made with folded over and sewn reinforcement.
Sapndex, Lycra - Lycra is a synthetic fiber, known for its exceptional elasticity.
Fence Net - similar to fishnet, but with a much wider pattern. These are sometimes worn over another pair of stockings or pantyhose, such as matte or opaque, with a contrasting color. Sometimes referred to as whalenets.
Opaque - material or alternately to non-sheer garments typically made of a stretchy material like spandex which do not necessarily cover the feet and may be worn by either gender during athletic activity or as utility clothing.
Seamless - Stockings knit in one operation on circular machines (one continuous operation) so that no seaming is required up the back.