Most dance tights are made from nylon blends with elastane/spandex for stretch; other options use cotton blends or polyester combined with spandex.
Sheerness typically ranges from very sheer (around 20 denier), through semi-opaque (about 40 denier), up to opaque options (around 50 denier).
Most dance tights feature a high waist or high-rise with a full elastic waistband; some styles use a control-top rise for extra hold. Toddler options may be cut differently to suit small bodies (for example, longer leg proportions in some styles).
Common features that help tights stay put are full elastic waistbands or control-top rises, stretchy nylon/spandex blends, and moisture-wicking or quick-drying fabrics.
Tights are sold both as single pairs and in multi-packs, with common package sizes including 1- and 3-pair options.