Yoga pants are a type of high-denier hosiery that reach from ankle to waist, originally designed for yoga as exercise and first sold in 1998 by Lululemon. They are made of a four-way stretch fabric, with a flat elastic waistband at the top, and provide flexibility and comfort, wicking moisture away from the body and helping to keep the wearer cool and comfortable. Yoga pants have migrated from the yoga studio to the high street and have increasingly been used as everyday casual wear. Some women wear them around the house, as maternity wear, and for dancing and going to clubs. Yoga pants have even been adopted as office wear.

The key features of yoga pants include:

• Material: Yoga pants are typically made of thick, opaque fabric with some stretch, such as cotton and bamboo blends, spandex, polyester, elastane, nylon, and other technical or sustainable fabrics.
• Waistband: Yoga pants have a broad waistband which can often be folded over, while leggings have a thin waistband.
• Shape: Basic yoga pants are black, tight-fitted, boot-cut, flared, and reversible, but there are now many styles available, including jogger yoga pants, loose harem pants, straight-leg bottoms, and skinny yoga pants.

It is worth noting that there is some debate over whether yoga pants qualify as "real pants". While they are not traditional pants designed to reshape the body in some way, they are still a popular and versatile clothing item that can be worn for exercise, casual wear, and even in some professional settings.